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Cyperales

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Subclass: Commelinidae
Order: Cyperales

Remove Filters: Grass or Grasslike(X) 3 Sizes Available(X)

1,109 Images of 191 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5483688 Japanese stiltgrass Microstegium vimineum
5483695 Japanese stiltgrass Microstegium vimineum
5431115 lakeshore nutrush Scleria lacustris
5431117 lakeshore nutrush Scleria lacustris
5431116 lakeshore nutrush Scleria lacustris
2132048 cogongrass Imperata cylindrica
5483705 Japanese stiltgrass Microstegium vimineum
5431329 saltmeadow cordgrass Spartina patens
5431330 smooth cordgrass Spartina alterniflora
2132089 cogongrass Imperata cylindrica Sharp-pointed rhizome
5463852 crowfootgrass Dactyloctenium aegyptium Inflorescence, dyed green.
5463851 crowfootgrass Dactyloctenium aegyptium Inflorescence, dyed green.
5463685 oat Avena sativa Fruiting inflorescences, dyed orange.
5463684 oat Avena sativa Fruiting inflorescences, dyed green.
5463683 oat Avena sativa Fruiting inflorescences with leaves.
5464099 sorghum Sorghum bicolor Fruiting inflorescences.
5464103 sorghum Sorghum bicolor Fruiting inflorescence, close-up.
5464101 sorghum Sorghum bicolor Fruiting inflorescences, dyed green, close-up.
5464102 sorghum Sorghum bicolor Fruits, dyed green.
5464100 sorghum Sorghum bicolor Fruiting inflorescences, dyed green.
5464020 pearl millet Pennisetum glaucum Fruiting inflorescences, dyed green.
5470982 pearl millet Pennisetum glaucum Fruiting inflorescences.
5464019 pearl millet Pennisetum glaucum Fruiting inflorescences, dyed various colors.
5463930 barley Hordeum vulgare Fruiting inflorescences.
5470902 barley Hordeum vulgare Fruiting inflorescence, close-up.
5470816 crowfootgrass Dactyloctenium aegyptium Inflorescences.
5470817 crowfootgrass Dactyloctenium aegyptium Inflorescences, dyed red.
5463853 crowfootgrass Dactyloctenium aegyptium Inflorescence piece, dyed green.
5470753 oat Avena sativa Fruiting inflorescences, close-up.
5463682 oat Avena sativa Fruiting inflorescences.
5471972 Uruguayan pampas grass Cortaderia selloana Pair of attached male florets, plus sterile apical floret.
5471973 Uruguayan pampas grass Cortaderia selloana Close-up of base of a female floret, ventral view.
5471971 Uruguayan pampas grass Cortaderia selloana Male spikelet with stamens missing but some pollen remaining.
5471970 Uruguayan pampas grass Cortaderia selloana Lateral view of a female floret.
5471968 Uruguayan pampas grass Cortaderia selloana Caryopses in dorsal (left), lateral (middle), and ventral (right) views. Apices at top.
5471969 Uruguayan pampas grass Cortaderia selloana Ventral view of a female floret. Note broken callus.
5471967 purple pampasgrass Cortaderia jubata Close-up of base of floret. Ventral view.
5471965 purple pampasgrass Cortaderia jubata Floret, lateral view.
5471966 purple pampasgrass Cortaderia jubata Floret, dorsal view.
5471964 purple pampasgrass Cortaderia jubata Immature caryopses in dorsal (top) and ventral (bottom) views. Note stylar remnants at the apex (right end) of each caryopsis.
5376595 brown-beard rice Oryza rufipogon Detail of fertile lemma surface. FNW taxon.
5465977 Italian ryegrass Festuca perennis Dorsal view of three florets. Note the location of awn attachment slightly below the apex of the lemma.
5465975 Italian ryegrass Festuca perennis Close-up of awn insertion site on lemma.
5465974 Italian ryegrass Festuca perennis Dorsal view of partially exposed caryopsis showing embryo.
5444767 Pacific bentgrass Agrostis avenacea Ventral view of floret, with hairs still attached.
5444768 Pacific bentgrass Agrostis avenacea Ventral view of floret, after some hairs were removed.
5444769 Pacific bentgrass Agrostis avenacea Part of an inflorescence.
5444766 Pacific bentgrass Agrostis avenacea Lateral view (left) and dorsal view (right) of floret. Note dentate lemma apices.
5444765 Pacific bentgrass Agrostis avenacea Caryopses in dorsal (left) and ventral (right) views.
5469916 annual bluegrass Poa annua Florets, close-up. Note multiple distinct ribs on lemma.
5469904 early watergrass Echinochloa oryzoides Floret in dorsal view showing slightly withered apex.
5469908 rough barnyardgrass Echinochloa muricata var. microstachya Floret in dorsal view showing fertile lemma with its slightly withered apex.
5469986 large crabgrass Digitaria sanguinalis Dorsal (left) and ventral (right) views of spikelet.
5469943 yellow nutsedge Cyperus esculentus Fruit cut in half to show triangular cross-sectional shape.
5469963 bermudagrass Cynodon dactylon Close-up of the puckered base of the caryopsis.
5469962 bermudagrass Cynodon dactylon Showing the puckered base of the caryopsis.
5467302 sorghum Sorghum bicolor Caryopsis in ventral view.
5467301 sorghum Sorghum bicolor Caryopses in ventral (with dark hilum) and dorsal views.
5467300 sorghum Sorghum bicolor Dorsal view of caryopsis.
5467299 sorghum Sorghum bicolor Three spikelet pairs, each with a sterile pedicellate spikelet and a fertile sessile spikelet.
5467297 sorghum Sorghum bicolor Caryopses of shattercane (a form of ssp. bicolor) in dorsal (left) and ventral (right) views.
5467293 rattail fescue Vulpia myuros Dorsal (top) and ventral (bottom) views of floret.
5467294 rattail fescue Vulpia myuros Ventral view of caryopsis. Some bract material (lemma and palea) attached.
5467291 rattail fescue Vulpia myuros Dorsal view of caryopsis. Some bract material (lemma and palea) attached.
5467292 rattail fescue Vulpia myuros Sometimes the upper sterile florets remain attach to a lower fertile floret. Each of these two groups has a fertile floret and two sterile florets.
5467290 small fescue Vulpia microstachys Ventral view of florets. Note that the palea keel veins extend beyond the tip of the palea, looking like the lemma awn.
5467289 small fescue Vulpia microstachys Dorsal view of florets. In the lower floret, note the pair of excurrent palea keel vein teeth.
5467287 small fescue Vulpia microstachys Empty glumes.
5467286 small fescue Vulpia microstachys Individual florets (most in ventral view).
5467285 medusahead Taeniatherum caput-medusae Caryopsis in dorsal view.
5467284 medusahead Taeniatherum caput-medusae Caryopsis in ventral view.
5467282 medusahead Taeniatherum caput-medusae Florets—dorsal view (left), lateral view (middle), and ventral view (bottom).
5467283 medusahead Taeniatherum caput-medusae Florets in ventral view showing rachilla and palea.
5467281 sorghum-almum Sorghum almum Ventral view of fertile spikelets where rough handling has resulted in reduced rachis and pedicel fragments.
5467280 sorghum-almum Sorghum almum Spikelets. A, C—ventral view showing upper glume and tiny remnants of pedicel and/or rachis; B, D, E—dorsal view showing the back of the lower glume.
5467279 green foxtail Setaria viridis Glumes and sterile lemma removed from spikelet to reveal sterile palea and fertile floret.
5467277 green foxtail Setaria viridis Florets in ventral view.
5467278 green foxtail Setaria viridis Spikelets. Most in dorsal view showing edges of lower glume (at bottom), upper glume, and a bit of fertile lemma.
5467275 green foxtail Setaria viridis Caryopsis in ventral view.
5467276 green foxtail Setaria viridis Florets in dorsal view. Three of the veins are clearly seen on each lemma.
5467274 green foxtail Setaria viridis Cluster of three normal and one aborted spikelets with their eleven bristles.
5467273 green foxtail Setaria viridis Caryopses in ventral (left) and dorsal (right) views.
5467271 bristly foxtail Setaria verticillata Spikelets in various positions.
5467272 bristly foxtail Setaria verticillata Glumes and sterile lemma removed to reveal sterile palea and fertile floret.
5467270 bristly foxtail Setaria verticillata Spikelets in various positions, labeled.
5467269 bristly foxtail Setaria verticillata Florets in dorsal view. Note that three of the veins can be seen on each lemma.
5467268 bristly foxtail Setaria verticillata Caryopsis in ventral view.
5467267 bristly foxtail Setaria verticillata Caryopses in dorsal (left) and ventral (right) views.
5467265 knotroot foxtail Setaria parviflora Spikelets in ventral view with glumes and sterile lemma removed to reveal sterile palea atop the fertile floret.
5467266 yellow foxtail Setaria pumila ssp. pumila Spikelet in ventral view with lower glume and sterile lemma removed to reveal sterile palea.
5467264 knotroot foxtail Setaria parviflora Caryopsis in ventral (left) and dorsal (right) views.
5467262 giant foxtail Setaria faberi Glumes and sterile lemma removed to reveal sterile palea and fertile floret.
5467263 giant foxtail Setaria faberi Spikelet in dorsal view showing upper glume and fertile lemma.
5467261 giant foxtail Setaria faberi Spikelets in dorsal, ventral and lateral views.
5467259 giant foxtail Setaria faberi Spikelets in ventral view, the one on the left at an angle.
5467260 giant foxtail Setaria faberi Floret in ventral view showing palea and edges of lemma.
5467257 giant foxtail Setaria faberi Caryopses in dorsal view showing embryo.
5467258 giant foxtail Setaria faberi Floret in dorsal view showing lemma.
5467255 bur bristlegrass Setaria adhaerens Florets in ventral view showing palea.
5467256 bur bristlegrass Setaria adhaerens Spikelet in dorsal view.
5467253 bur bristlegrass Setaria adhaerens Florets in dorsal view showing lemma.
5467254 bur bristlegrass Setaria adhaerens Spikelet in ventral view.
5467251 bur bristlegrass Setaria adhaerens Spikelet with bristles still attached. (There were originally two spikelets attached, with one bristle per spikelet.) Note that the bristles are retrorsely scabrous.
5467252 bur bristlegrass Setaria adhaerens Caryopsis in ventral view (left) showing hilum and in dorsal view (right) showing embryo.
5467250 common mediterraneangrass Schismus barbatus Spikelet.
5467249 common mediterraneangrass Schismus barbatus Two intact spikelets.
5467248 common mediterraneangrass Schismus barbatus Dorsal (left) and ventral (right) views of floret.
5467246 common mediterraneangrass Schismus barbatus Ventral view of florets. Note the hairs between the ribbed veins on the floret to the right.
5467247 common mediterraneangrass Schismus barbatus Two florets in ventral view and one in dorsal view. The transparency of the palea reveals the position and color of the caryopsis.
5467244 Arabian schismus Schismus arabicus Florets in ventral and dorsal views. Note deeply lobed lemma apex and hairy callus.
5467245 common mediterraneangrass Schismus barbatus Caryopses in ventral (left) and dorsal (right) views.
5467243 Arabian schismus Schismus arabicus Florets in ventral (left) and dorsal (right) views. Note transparency of palea.
5467242 Arabian schismus Schismus arabicus Florets in ventral (left) and dorsal (right) views, labeled. Note transparency of palea.
5467240 Arabian schismus Schismus arabicus Caryopsis in ventral view.
5467241 Arabian schismus Schismus arabicus Caryopses in dorsal (left) and lateral (right) views. Note transparency.
5467239 Mediterranean hairgrass Rostraria cristata Lateral view of three florets.
5467237 Mediterranean hairgrass Rostraria cristata Lateral view of floret, close-up.
5467238 Mediterranean hairgrass Rostraria cristata Lateral view of florets. The three on the left are hirsute and probably came from lower down on the spikelet than the one on the right.
5467236 Mediterranean hairgrass Rostraria cristata Lateral view of floret, labeled.
5467235 Mediterranean hairgrass Rostraria cristata Lateral view of two caryopses.
5467234 Mediterranean hairgrass Rostraria cristata Three florets from the top of a spikelet.
5467232 water-bent Polypogon viridis Spikelets.
5467233 water-bent Polypogon viridis Spikelets. Note persistent pedicel/stipe at base.
5467231 water-bent Polypogon viridis Floret in ventral view (left) showing 2-veined palea and in dorsal view (right) showing lemma.
5467230 water-bent Polypogon viridis Caryopsis in dorsal (left) and slightly angled lateral (right) views.
5467223 rabbitfoot polypogon Polypogon monspeliensis Spikelet close-up. Note bristly glume apices.
5467224 rabbitfoot polypogon Polypogon monspeliensis Spikelets in lateral view. The lower glume is on the left in the first spikelet and on the right in the remaining spikelets.
5467222 rabbitfoot polypogon Polypogon monspeliensis Caryopsis in ventral view.
5467221 rabbitfoot polypogon Polypogon monspeliensis Caryopsis in lateral view.
5467229 ditch polypogon Polypogon interruptus Spikelets. Note that all awns are easily broken off.
5467228 ditch polypogon Polypogon interruptus Floret in ventral view, labeled.
5467227 ditch polypogon Polypogon interruptus Caryopsis in dorsal (left) and lateral (right) views.
5467225 ditch polypogon Polypogon interruptus Spikelet, labeled.
5466600 Sandberg bluegrass Poa secunda Floret pair showing the rachilla joining them.
5466601 Sandberg bluegrass Poa secunda Spikelet with two florets.
5466598 Sandberg bluegrass Poa secunda Floret, dorsal view.
5466599 Sandberg bluegrass Poa secunda Floret, ventral view.
5466596 Sandberg bluegrass Poa secunda A floret pair showing the rachilla joining them.
5466597 Sandberg bluegrass Poa secunda Caryopsis in ventral view.
5466595 Sandberg bluegrass Poa secunda Florets. All are seen in ventral view, revealing rachilla, except for the floret in the lower right corner, which is shown in dorsal view. Most of the lemma tips have been damaged.
5466584 Kentucky bluegrass Poa pratensis ssp. pratensis Caryopsis in lateral view with some palea tissue still attached.
5466585 Kentucky bluegrass Poa pratensis ssp. pratensis Florets, dorsal view. Callus hairs removed for better view. Note distinctly ribbed midvein.
5466583 Kentucky bluegrass Poa pratensis ssp. pratensis Caryopses with some palea tissue still attached.
5466582 Kentucky bluegrass Poa pratensis ssp. pratensis Since these florets have been commercially processed, the lemma tips are broken and the callus hairs have been rubbed off.
5466581 Kentucky bluegrass Poa pratensis ssp. pratensis Floret in lateral view.
5466580 Kentucky bluegrass Poa pratensis ssp. pratensis Florets, showing normal (originally floret-bearing) and barren rachillas. The barren rachillas measure ca. 1.2 mm long.
5466576 annual bluegrass Poa annua Floret in lateral view.
5466575 annual bluegrass Poa annua Florets, those in ventral view showing rachilla.
5466574 annual bluegrass Poa annua Caryopsis in lateral view.
5466565 common reed Phragmites australis Two spikelet bases, which include glumes and a sterile floret.
5466564 common reed Phragmites australis Top of a spikelet with six florets.
5466562 common reed Phragmites australis Caryopses in dorsal (left) and ventral (right) views. Note persistent styles, which are easily broken off, at apex.
5466560 littleseed canarygrass Phalaris minor Disseminules (fertile florets with sterile lemmas attached).
5466561 littleseed canarygrass Phalaris minor Ventral view of fertile floret (with sterile lemma still attached) showing lemma edges enveloping palea.
5466559 littleseed canarygrass Phalaris minor Lateral view of fertile floret with sterile lemmas attached.
5466558 littleseed canarygrass Phalaris minor Caryopsis in lateral view.
5466557 canarygrass Phalaris canariensis Fertile floret subtended by the lemmas of two sterile florets.
5466555 canarygrass Phalaris canariensis Dorsal view of fertile floret (without sterile lemmas attached).
5466556 canarygrass Phalaris canariensis Ventral view of fertile floret (without sterile lemmas attached) showing lemma edges enveloping palea. Apex at right.
5466554 canarygrass Phalaris canariensis Lateral view of fertile floret without sterile lemmas attached.
5466553 canarygrass Phalaris canariensis Caryopsis in lateral view.
5466545 crimson fountaingrass Pennisetum setaceum Disseminule with some bristles removed to reveal spikelet cluster.
5466543 crimson fountaingrass Pennisetum setaceum Spikelet with glumes removed.
5466542 crimson fountaingrass Pennisetum setaceum Caryopses in dorsal view (left) showing embryo and in ventral view (right) showing hilum.
5466541 crimson fountaingrass Pennisetum setaceum Close-up of a plumose bristle.
5466540 buffelgrass Pennisetum ciliare Three fascicles containing spikelet clusters subtended by whorls of bristles.
5466539 buffelgrass Pennisetum ciliare Three fascicles containing spikelet clusters subtended by whorls of bristles.
5466538 buffelgrass Pennisetum ciliare Disseminule (a fascicle) with some bristles removed to show the three spikelets.
5466537 buffelgrass Pennisetum ciliare Floret in ventral view.
5466536 buffelgrass Pennisetum ciliare Caryopsis in ventral view.
5466022 knotgrass Paspalum distichum Two spikelets in ventral view (left) showing sterile lemma and edges of upper glume and two in dorsal view (right) showing upper glume. Note pedicel remnant on the last spikelet.
5466021 knotgrass Paspalum distichum Floret in ventral view (left) showing palea and edges of lemma and in dorsal view (right) showing lemma.
5466020 knotgrass Paspalum distichum Caryopsis in dorsal (left) and ventral (right) views.
5466018 dallisgrass Paspalum dilatatum Spikelets in dorsal and ventral views.
5466019 dallisgrass Paspalum dilatatum Spikelet in ventral (left) and dorsal (right) views.
5466017 dallisgrass Paspalum dilatatum Spikelets in dorsal and ventral views. Labeled.
5466015 dallisgrass Paspalum dilatatum Floret in dorsal view showing fertile lemma.
5466016 dallisgrass Paspalum dilatatum Floret in ventral view.
5466014 dallisgrass Paspalum dilatatum Caryopsis in ventral view showing hilum.
5466013 dallisgrass Paspalum dilatatum Caryopsis in dorsal view showing embryo.
5466012 desert panicgrass Panicum urvilleanum Sterile palea and sterile lemma still attached at their bases, but otherwise removed from the rest of the spikelet.
5466011 desert panicgrass Panicum urvilleanum Spikelet in lateral view.
5466010 desert panicgrass Panicum urvilleanum Spikelets in various views.
5466009 desert panicgrass Panicum urvilleanum Basal scar of floret.
5466007 desert panicgrass Panicum urvilleanum Caryopsis in dorsal (left) and ventral (right) views.
5466008 desert panicgrass Panicum urvilleanum Florets in ventral (top) and dorsal (bottom) views. Note hairs on lemma margins.
5466006 fall panicum Panicum dichotomiflorum Spikelets in ventral and dorsal views.
5466004 fall panicum Panicum dichotomiflorum Floret in dorsal (left) and ventral (right) views.
5466005 fall panicum Panicum dichotomiflorum Basal scar of floret.
5465991 rice Oryza sativa Lateral view of two fertile florets, each subtended by the lemmas of two sterile florets.
5465992 rice Oryza sativa Caryopsis in dorsal view. Note the thickness of the caryopsis.
5465990 rice Oryza sativa Lateral view of caryopses. Note longitudinal ridges.
5465989 poison ryegrass Lolium temulentum Caryopsis in ventral view showing linear hilum. Base at left.
5465988 poison ryegrass Lolium temulentum Floret in dorsal (left) and ventral (right) views. Apex at top.
5465987 poison ryegrass Lolium temulentum Floret in dorsal view (top) and ventral view (bottom).
5465986 poison ryegrass Lolium temulentum Caryopsis in dorsal view. Vertical cracks due to rough handling.
5465985 rigid ryegrass Lolium rigidum Caryopsis in ventral view (top) and dorsal view (bottom).
5465984 rigid ryegrass Lolium rigidum Floret in ventral view.
5465982 rigid ryegrass Lolium rigidum Florets in dorsal view—the upper floret with a short awn, the lower floret with an awnless, irregularly notched apex.
5465983 rigid ryegrass Lolium rigidum Florets, the one at the bottom with an attached apical sterile floret.
5465981 perennial ryegrass Lolium perenne Dorsal view of florets with damaged apices.
5465979 perennial ryegrass Lolium perenne Florets—dorsal view (left), ventral view (center), ventral view with apical floret.
5465980 perennial ryegrass Lolium perenne Ventral view of caryopses showing linear hilum and some palea remnants.
5465978 perennial ryegrass Lolium perenne Dorsal view of caryopses.
5465969 sticky sprangletop Leptochloa viscida Lateral view of an immature spikelet with five florets (top) and three pairs of empty glumes on an inflorescence stalk (bottom).
5465972 sticky sprangletop Leptochloa viscida Dorsal view of florets. Note positions of the ribbed lateral veins near the margins.
5465973 sticky sprangletop Leptochloa viscida Ventral view of floret.
5465971 sticky sprangletop Leptochloa viscida Caryopsis in dorsal view.
5465970 sticky sprangletop Leptochloa viscida Caryopsis in ventral view.
5465967 Mexican sprangletop Leptochloa fusca ssp. uninervia Florets in dorsal (left) and ventral (right) views. Note the distinct nature of lemma apex.
5465968 Mexican sprangletop Leptochloa fusca ssp. uninervia Caryopses in ventral view. Note that the caryopses are more or less translucent.
5465965 Mexican sprangletop Leptochloa fusca ssp. uninervia Caryopsis in lateral view.
5465966 Mexican sprangletop Leptochloa fusca ssp. uninervia Caryopses in dorsal view showing embryo.
5465963 bearded sprangletop Leptochloa fusca ssp. fascicularis Three florets in dorsal view (top) and two in ventral view. Note the dark coloring on the lower half of the florets.
5465964 bearded sprangletop Leptochloa fusca ssp. fascicularis Caryopsis in ventral view showing hilum.
5465962 bearded sprangletop Leptochloa fusca ssp. fascicularis Caryopses in dorsal view showing embryo.
5463774 little lovegrass Eragrostis minor Two caryopses in dorsal view.
5464470 Mediterranean barley Hordeum marinum ssp. gussonianum Disseminule with fertile floret in dorsal view. Labeled.
5464524 wall barley Hordeum murinum ssp. murinum Close-up of sterile palea, which is more or less glabrous.
5464522 wall barley Hordeum murinum ssp. murinum Three disseminules, each consisting of multiple spikelets and florets.
5464521 wall barley Hordeum murinum ssp. murinum Caryopsis in dorsal view.
5464519 wall barley Hordeum murinum ssp. murinum Disseminule with fertile floret in dorsal view. Labeled.
5464509 leporinum barley Hordeum murinum ssp. leporinum Close-up of base of sterile palea showing scabrous hairs.
5464508 leporinum barley Hordeum murinum ssp. leporinum Three disseminules, each consisting of multiple spikelets and florets.
5464506 leporinum barley Hordeum murinum ssp. leporinum Disseminule with florets in ventral view. The rachis was broken pulling the disseminule apart for a better view. Labeled.
5464504 leporinum barley Hordeum murinum ssp. leporinum Disseminule in dorsal view. Labeled.
5464505 leporinum barley Hordeum murinum ssp. leporinum Disseminule in dorsal view.
5464482 smooth barley Hordeum murinum ssp. glaucum Three disseminules composed of multiple spikelets and florets.
5464480 smooth barley Hordeum murinum ssp. glaucum Disseminule with fertile floret in ventral view. Labeled.
5464478 smooth barley Hordeum murinum ssp. glaucum Disseminule with fertile floret in dorsal view. Labeled.
5464476 smooth barley Hordeum murinum ssp. glaucum Caryopsis in dorsal view.
5464475 Mediterranean barley Hordeum marinum ssp. gussonianum Caryopses in ventral view showing linear hilar groove.
5464474 Mediterranean barley Hordeum marinum ssp. gussonianum Caryopses in dorsal view.
5464472 Mediterranean barley Hordeum marinum ssp. gussonianum Disseminule with fertile floret in ventral view. Labeled.
5464471 Mediterranean barley Hordeum marinum ssp. gussonianum Disseminule with fertile floret in dorsal view.
5464469 Mediterranean barley Hordeum marinum ssp. gussonianum Two disseminules with fertile floret in ventral view.
5464460 common velvetgrass Holcus lanatus Spikelet in lateral view. Note the purple coloring over the glume veins as well as the short awn on the upper glume (top).
5464458 common velvetgrass Holcus lanatus Caryopsis in lateral view.
5464459 common velvetgrass Holcus lanatus The sterile and fertile florets removed from the spikelet. Note the long callus hairs.
5464457 common velvetgrass Holcus lanatus Caryopsis in ventral view showing hilum in longitudinal groove.
5464456 common velvetgrass Holcus lanatus Spikelets in lateral view.
5464444 red fescue Festuca rubra ssp. rubra Lateral view of a terminal grouping of three florets.
5464445 red fescue Festuca rubra ssp. rubra ndividual florets (most in ventral view) and an apical terminal grouping of florets. Note purplish coloring inside some florets.
5464442 red fescue Festuca rubra ssp. rubra Ventral view of caryopsis showing linear hilum and deep hilar groove.
5464443 red fescue Festuca rubra ssp. rubra Ventral view of three florets with unbroken awns and glabrous calluses. Note bifid palea tip of the center floret.
5464441 red fescue Festuca rubra ssp. rubra Dorsal view of caryopsis.
5464376 western fescue Festuca occidentalis Ventral view of florets. The bottom specimen has a remnant of an anther attached.
5464375 western fescue Festuca occidentalis Dorsal view of florets. The lemmas, including the awns, are scabrous.
5464374 western fescue Festuca occidentalis Ventral view of caryopsis, showing the hilar groove in which palea tissue persists. Note that the base of the caryopsis (to the left) has been broken off.
5464372 western fescue Festuca occidentalis Caryopses in dorsal view. Palea tissue is still attached to the ventral sides.
5464373 western fescue Festuca occidentalis Individual florets (most in ventral view).
5464371 tall fescue Festuca arundinacea Ventral view of two florets, one with a terminal sterile floret attached to the rachilla. Both with damaged lemma tips.
5464370 tall fescue Festuca arundinacea Ventral view (left) and dorsal view (right) of two caryopses each. Apex at top.
5463803 prairie cupgrass Eriochloa contracta Spikelet in dorsal (left) and ventral (right) views.
5463802 prairie cupgrass Eriochloa contracta Mature spikelets.
5463801 prairie cupgrass Eriochloa contracta Caryopses in ventral view, showing dark-colored hilum.
5463799 prairie cupgrass Eriochloa contracta Caryopses in dorsal view. Note that the embryos are about 1 mm long.
5463800 prairie cupgrass Eriochloa contracta Florets—immature in dorsal view (left), mature in ventral view (center, right). Only center floret has an intact awn.
5463797 tapertip cupgrass Eriochloa acuminata var. acuminata Undeveloped caryopses resting within palea.
5463795 tapertip cupgrass Eriochloa acuminata var. acuminata Floret in ventral view with callus intact (left) and dorsal view with callus missing (right).
5463796 tapertip cupgrass Eriochloa acuminata var. acuminata Spikelet in dorsal view, showing upper glume.
5463794 tapertip cupgrass Eriochloa acuminata var. acuminata Caryopsis in ventral (left) and dorsal (right) views.
5463788 India lovegrass Eragrostis pilosa This disseminule consists of the caryopsis sheathed by only the lemma.
5463789 India lovegrass Eragrostis pilosa Intact spikelet, close-up. Labeled.
5463787 India lovegrass Eragrostis pilosa Two intact spikelets, one spikelet pedicel with persistent rachillas after florets have detached, one disseminule with palea and lemma, two disseminules with lemma only, and two loose caryopses.
5463786 India lovegrass Eragrostis pilosa Disseminule with both palea and lemma, but no rachilla.
5463785 India lovegrass Eragrostis pilosa Caryopses in various views.
5463782 tufted lovegrass Eragrostis pectinacea Top of a spikelet. The persistent paleas near the base reflect the acropetal disarticulation of disseminules.
5463781 tufted lovegrass Eragrostis pectinacea Nearly mature florets still attached to rachilla.
5463779 tufted lovegrass Eragrostis pectinacea Lateral view of a caryopsis measuring 0.7 mm long.
5463780 tufted lovegrass Eragrostis pectinacea The disseminule consists of the caryopsis sheathed by the lemma only.
5463777 little lovegrass Eragrostis minor Spikelets with glandular rings on their pedicels. Lateral veins of lemmas are green and ribbed. Labeled.
5463776 little lovegrass Eragrostis minor The disseminule typically consists of the caryopsis sheathed by the lemma only.
5463773 little lovegrass Eragrostis minor Lateral views (left, center) and dorsal view (right) of caryopsis. Note variation in surface texture, from smooth to reticulate.
5463775 little lovegrass Eragrostis minor Basal floret still attached to rachis to show palea. Glume and lemma are glandular on their midveins.
5463770 Mexican lovegrass Eragrostis mexicana Spikelet with glumes and basal disseminule missing.
5463768 Mexican lovegrass Eragrostis mexicana The disseminule typically consists of the caryopsis sheathed by only the lemma.
5463769 Mexican lovegrass Eragrostis mexicana Disseminule (lemma and caryopsis only) in lateral view.
5463767 Mexican lovegrass Eragrostis mexicana Caryopses in various views.
5463764 weeping lovegrass Eragrostis curvula Spikelet tip with two fertile florets still attached. Note that the brown caryopses can be seen through the ± translucent lemmas.
5463765 weeping lovegrass Eragrostis curvula Caryopsis in ventral (left) and dorsal (right) views.
5463763 weeping lovegrass Eragrostis curvula Florets in ventral view. The brown caryopses can be seen through the ± translucent paleas.
5463762 weeping lovegrass Eragrostis curvula Florets in dorsal view. Note that the veins are relatively opaque and therefore easily seen.
5463756 stinkgrass Eragrostis cilianensis The disseminule typically consists of the caryopsis sheathed by only the lemma.
5463755 stinkgrass Eragrostis cilianensis Remnant of the top of a spikelet. Note long cilia on palea veins.
5463754 stinkgrass Eragrostis cilianensis The caryopses naturally rest on their sides since they are laterally compressed.
5463753 stinkgrass Eragrostis cilianensis Caryopsis in ventral (left) and dorsal (right) views.
5463752 Mediterranean lovegrass Eragrostis barrelieri Disseminules (lemma plus caryopsis) in lateral (top) and ventral (bottom) views.
5463751 Mediterranean lovegrass Eragrostis barrelieri Top of a mature spikelet.
5463750 Mediterranean lovegrass Eragrostis barrelieri Caryopses in various views.
5463743 goosegrass Eleusine indica Dorsal view of florets showing lemma.
5463742 goosegrass Eleusine indica Floret in ventral (left) and dorsal (right) views.
5463740 goosegrass Eleusine indica Attached florets at the top of a spikelet.
5463741 goosegrass Eleusine indica Florets in ventral view.
5463739 goosegrass Eleusine indica Dorsal side of fruits.
5463738 goosegrass Eleusine indica Seed in dorsal (left) and ventral (right) views.
5463737 early watergrass Echinochloa oryzoides Outer bracts (glumes and sterile lemma) removed to reveal sterile palea and fertile floret.
5463735 early watergrass Echinochloa oryzoides Caryopsis in dorsal view (left) showing embryo and in ventral view (right) showing hilum.
5463736 early watergrass Echinochloa oryzoides Florets in dorsal view showing fertile lemma, which has a slightly withered apex.
5463734 early watergrass Echinochloa oryzoides Spikelets in various views. The upper glume is easily broken off of this disseminule and therefore may be missing.
5463732 early watergrass Echinochloa oryzoides Spikelet in lateral view. Labeled.
5463725 rough barnyardgrass Echinochloa muricata var. microstachya Spikelet in dorsal view.
5463723 rough barnyardgrass Echinochloa muricata var. microstachya Spikelets in ventral view.
5463724 rough barnyardgrass Echinochloa muricata var. microstachya Outer bracts (glumes and sterile lemma) removed to reveal sterile palea and fertile floret.
5463722 rough barnyardgrass Echinochloa muricata var. microstachya Floret in dorsal view showing fertile lemma with its slightly withered apex.
5463721 rough barnyardgrass Echinochloa muricata var. microstachya Caryopsis in dorsal view (left) showing relatively large embryo and in ventral view (right) showing hilum.
5463720 gulf cockspur Echinochloa crus-pavonis Outer bracts (glumes and sterile lemma) removed to reveal sterile palea and fertile floret.
5463718 gulf cockspur Echinochloa crus-pavonis Floret in dorsal view showing fertile lemma, which has a withered apex (at right).
5463719 gulf cockspur Echinochloa crus-pavonis Spikelets in various views.
5463717 gulf cockspur Echinochloa crus-pavonis Caryopsis in dorsal view (left) showing embryo and in ventral view (right) showing hilum.
5463716 gulf cockspur Echinochloa crus-pavonis Spikelet in ventral view.
5463715 barnyardgrass Echinochloa crus-galli Outer bracts removed to reveal sterile palea and fertile floret.
5463714 barnyardgrass Echinochloa crus-galli Spikelet in ventral view.
5463712 barnyardgrass Echinochloa crus-galli Florets in ventral view.
5463710 barnyardgrass Echinochloa crus-galli Florets in dorsal view showing fertile lemma, which has a withered, hairy apex.
5463711 barnyardgrass Echinochloa crus-galli Close-up of lemma tips showing presence of small hairs.
5463709 barnyardgrass Echinochloa crus-galli Caryopsis in ventral view (left) showing hilum and in dorsal view (right) showing large embryo.
5463697 junglerice Echinochloa colona Outer bracts (glumes and sterile lemma) removed to reveal sterile palea and fertile floret.
5463696 junglerice Echinochloa colona Spikelets in various views, some with purple coloring.
5463695 junglerice Echinochloa colona Close-up of spikelet in two views.
5463694 junglerice Echinochloa colona Floret in dorsal view showing fertile lemma with its withered apex.
5462914 saltgrass Distichlis spicata Lateral view of one entire floret (left) and four florets with lemmas missing.
5462913 saltgrass Distichlis spicata Lateral view of florets.
5462911 saltgrass Distichlis spicata Caryopses in lateral view.
5462912 saltgrass Distichlis spicata Caryopsis in ventral (left) and dorsal (right) views. Note bifid apex (i.e., styles).
5462910 large crabgrass Digitaria sanguinalis Spikelets in ventral view.
5462908 large crabgrass Digitaria sanguinalis Spikelets in dorsal view.
5462909 large crabgrass Digitaria sanguinalis Mature spikelets, some in ventral view (showing lower glume and sterile lemma) and some in dorsal view (showing upper glume and fertile lemma). One floret (top right) in ventral view, showing palea and fertile lemma edges.
5462907 large crabgrass Digitaria sanguinalis Caryopsis in dorsal view.
5462906 large crabgrass Digitaria sanguinalis Floret (ventral view) with partially exposed caryopsis.
5462904 smooth crabgrass Digitaria ischaemum Spikelet in ventral view showing sterile lemma.
5462903 smooth crabgrass Digitaria ischaemum Spikelets, most in dorsal view, showing upper glume and a bit of the tip of the fertile lemma.
5462901 smooth crabgrass Digitaria ischaemum Caryopsis in ventral (left) and dorsal (right) views.
5462902 smooth crabgrass Digitaria ischaemum Floret (ventral view) with damaged palea and partially exposed caryopsis.
5462899 orchardgrass Dactylis glomerata Two single florets and three groups of attached florets (two groups with two florets each and one group with three florets).
5462900 orchardgrass Dactylis glomerata Florets in ventral view.
5462898 orchardgrass Dactylis glomerata Dorsal view of floret showing veins merging towards lemma apex.
5462897 orchardgrass Dactylis glomerata Florets in dorsal (left) and lateral (right, note long-ciliate midvein) views.
5462896 orchardgrass Dactylis glomerata Caryopses at an angle between lateral and ventral views.
5462895 orchardgrass Dactylis glomerata Caryopses in dorsal view showing embryo at base.
5462893 bermudagrass Cynodon dactylon Floret with lower glume attached, upper glume gone.
5462894 bermudagrass Cynodon dactylon Caryopses.
5462892 bermudagrass Cynodon dactylon Florets, some with a glume still attached.
5462891 bermudagrass Cynodon dactylon Lateral view of caryopsis. Note the bifid stylar base at the apex of the fruit.
5462889 feather fingergrass Chloris virgata Disseminule in lateral view.
5462890 feather fingergrass Chloris virgata First sterile floret pulled back to reveal a secondary sterile floret.
5462887 feather fingergrass Chloris virgata Lateral view of caryopses.
5462888 feather fingergrass Chloris virgata Disseminule in lateral view.
5462886 rhodesgrass Chloris gayana Disseminule in lateral view showing fertile floret and first sterile floret pulled apart.
5462885 rhodesgrass Chloris gayana Fertile floret in ventral view, with sterile floret(s) removed, showing bearded callus, short rachilla, palea, marginal hairs near apex of lemma, and awn.
5462884 rhodesgrass Chloris gayana Caryopsis in dorsal view.
5462883 rhodesgrass Chloris gayana Disseminule in lateral view showing fertile floret and first sterile floret as they naturally occur.
5462009 longspine sandbur Cenchrus longispinus Floret in dorsal (left) view. Note the U-shaped ridge at the base of the lemma.
5462019 field sandbur Cenchrus spinifex Spikelet with the spiny cupule removed.
5462018 field sandbur Cenchrus spinifex Caryopsis in dorsal (left) and ventral (right) views. Note the relatively large embryo.
5462017 field sandbur Cenchrus spinifex Floret in ventral view.
5462015 field sandbur Cenchrus spinifex Disseminule (cupule of fused bristles surrounding spikelets). Base at bottom.
5462016 field sandbur Cenchrus spinifex Floret in dorsal view. Note the U-shaped ridge at the base of the lemma.
5462014 field sandbur Cenchrus spinifex Disseminule (cupule of fused bristles surrounding spikelets).
5462013 field sandbur Cenchrus spinifex Close-up view of the disseminule reveals one of the spikelets enclosed by the spiny cupule.
5462012 longspine sandbur Cenchrus longispinus Spikelet with the spiny cupule removed. During dissection the lower glume often detaches from the spikelet.
5462011 longspine sandbur Cenchrus longispinus Spikelet with the spiny cupule removed. During dissection the lower glume often detaches from the spikelet.
5462010 longspine sandbur Cenchrus longispinus Floret in ventral view.
5462008 longspine sandbur Cenchrus longispinus Caryopses in dorsal view. Note stylar remnant at apex and the relatively large embryo.
5462003 longspine sandbur Cenchrus longispinus Spikelets surrounded by a spiny cupule form the disseminule. Labeled.
5462005 longspine sandbur Cenchrus longispinus Spikelets surrounded by a spiny cupule form the disseminule. Labeled.
5462004 longspine sandbur Cenchrus longispinus Spikelets surrounded by a spiny cupule form the disseminule. Base at bottom.
5462007 longspine sandbur Cenchrus longispinus Caryopsis in ventral view showing hilum.
5462006 longspine sandbur Cenchrus longispinus Close-up view of the disseminule showing the enclosed spikelets. Base at bottom.
5459701 green kyllinga Kyllinga brevifolia Three fruits (left) with little of the outer iridescent layer left on them, one fruit covered with iridescent layer.
5459702 green kyllinga Kyllinga brevifolia Disseminule (spikelet).
5459703 green kyllinga Kyllinga brevifolia Four spikelets.
5458296 tall flatsedge Cyperus eragrostis A spikelet and many fruits.
5458297 yellow nutsedge Cyperus esculentus Fruit with (left) and without (right) the silvery outermost pericarp layer still intact.
5458298 yellow nutsedge Cyperus esculentus Fruit lying on its back (left) and one lying on its frontal ridge, showing the back (right).
5458299 yellow nutsedge Cyperus esculentus Fruits. Note that the outermost silvery layer is worn away on some fruits, showing the dark brown color below.
5458293 tall flatsedge Cyperus eragrostis Fruit with much of the outermost pericarp layer scraped away. Base to left.
5458294 tall flatsedge Cyperus eragrostis Fruit with outermost iridescent pericarp layer intact, lying on its frontal ridge.
5458295 tall flatsedge Cyperus eragrostis The outermost iridescent layer is worn away in small patches on some fruits, showing the dark brown color below.
5461367 cheatgrass Bromus tectorum Close-up of base of floret, ventral (left) and lateral (right) views.
5461368 cheatgrass Bromus tectorum Caryopses, two with broken bases.
5461369 cheatgrass Bromus tectorum Dorsal view of florets, the top floret with the tip of the lemma broken off. Note the hyaline lemma teeth.
5461370 cheatgrass Bromus tectorum Ventral view of florets, with awn missing (top) and awn broken (bottom). Note the purple color of the caryopsis through the transparent palea.
5461365 California brome Bromus carinatus Angled-ventral view of caryopsis, showing linear hilum.
5461366 California brome Bromus carinatus Close-up of lemma tips
5461362 California brome Bromus carinatus Close-up of the base of floret.
5461363 California brome Bromus carinatus Lateral view of caryopsis.
5461364 California brome Bromus carinatus Florets in lateral view.
5461359 foxtail brome Bromus madritensis Ventral (left) and lateral (right) views of base of floret showing disarticulation scar and pointed callus.
5461360 foxtail brome Bromus madritensis Caryopses in dorsal view. Darker caryopsis with broken base is ssp. rubens.
5461361 foxtail brome Bromus madritensis Caryopsis in ventral view.
5461358 smooth brome Bromus inermis ssp. inermis Ventral view of florets with broken lemma tips.
5461355 smooth brome Bromus inermis ssp. inermis Ventral view of caryopsis showing the long linear hilum.
5461356 smooth brome Bromus inermis ssp. inermis Dorsal view of two caryopses showing the longitudinal groove.
5461357 smooth brome Bromus inermis ssp. inermis Dorsal view of florets with broken lemma tips.
5461348 ripgut brome Bromus diandrus Lateral view of the sharply pointed base of the floret.
5461349 ripgut brome Bromus diandrus Ventral view of the sharply pointed base of the floret.
5461350 ripgut brome Bromus diandrus Dorsal view of the caryopsis.
5461351 ripgut brome Bromus diandrus Ventral view of the caryopsis. The linear hilum is hidden by attached palea tissue.
5461352 soft brome Bromus hordeaceus Dorsal view of caryopses, with some lemma tissue still attached.
5461353 soft brome Bromus hordeaceus Ventral view of caryopses. The linear hilum can be seen through the transparent palea tissue.
5461354 soft brome Bromus hordeaceus Left to right—ventral view of a floret, dorsal view, three attached florets from the apex of the spikelet, two attached florets.
5461343 rescuegrass Bromus catharticus Lateral view of the strongly keeled florets, showing awn and rachilla.
5461344 rescuegrass Bromus catharticus Ventral (left) and dorsal (right) views of floret.
5461345 rescuegrass Bromus catharticus Caryopses.
5461346 rescuegrass Bromus catharticus Lateral view of florets, showing ribbed midvein and basal disarticulation scar.
5444798 Chilean chess Bromus berteroanus Empty glumes.
5444795 Chilean chess Bromus berteroanus Lateral view of caryopses.
5444796 Chilean chess Bromus berteroanus Florets, dorsal view.
5444797 Chilean chess Bromus berteroanus Florets, in lateral and ventral views
5461339 Australian chess Bromus arenarius Florets, dorsal view.
5461340 Australian chess Bromus arenarius Dorsal view of caryopses, with some lemma tissue still attached.
5461341 Australian chess Bromus arenarius Ventral view of caryopsis. Note that the edges are slightly rolled inward, creating a longitudinal depression.
5461342 Australian chess Bromus arenarius Florets, ventral view.
5444780 oat Avena sativa Dorsal view of caryopsis.
5444781 oat Avena sativa Dorsal view of floret. Note the mostly glabrous body of the lemma and the short apical lemma lobes
5444782 oat Avena sativa Ventral view of florets of a weedy form of cultivated oats showing hairy rachilla and triangular disarticulation scar.
5444794 wild oat Avena fatua Awn attachment scar.
5444775 slender oat Avena barbata Dorsal view of floret. Note the long apical lemma lobes.
5444776 slender oat Avena barbata Caryopses in dorsal view showing embryo.
5444777 slender oat Avena barbata Caryopses in ventral view showing linear hilum.
5444774 creeping bentgrass Agrostis stolonifera Spikelets detached from inflorescence.
5444772 creeping bentgrass Agrostis stolonifera Ventral view of caryopsis.
5444773 creeping bentgrass Agrostis stolonifera Dorsal view of floret. Note visible lateral veins on lemma and hairs on callus.
5444770 creeping bentgrass Agrostis stolonifera Dorsal view of caryopsis.
5444771 creeping bentgrass Agrostis stolonifera Florets from left to right—one in lateral view, one in dorsal view, two in ventral view.
5451345 reed canarygrass Phalaris arundinacea
5448809 small carpetgrass, joint-head grass Arthraxon hispidus inflorescence
5449005 cheatgrass Bromus tectorum
5438685 cattail millet Setaria glauca branch collar
5438692 cattail millet Setaria glauca
5438693 cattail millet Setaria glauca
5438690 cattail millet Setaria glauca
5438686 cattail millet Setaria glauca Branch collar and ligule
5438687 cattail millet Setaria glauca ligule
5437236 goosegrass Eleusine indica
5386214 littleseed canarygrass Phalaris minor floret with sterile bract at base.
5387403 cereal rye Secale cereale spikelets.
5387348 Mexican lovegrass Eragrostis mexicana ssp. virescens spikelets.
5387365 tall fescue Festuca arundinacea spikelets.
5387123 slender oat Avena barbata spikelets.
5387147 little quakinggrass Briza minor spikelets.
5387332 Mediterranean lovegrass Eragrostis barrelieri spikelets.
5387196 rattlesnake brome Bromus briziformis spikelets.
5387343 Lehmann lovegrass Eragrostis lehmanniana spikelets.
5386225 smilograss Piptatherum miliaceum spikelets.
5387083 barb goatgrass Aegilops triuncialis spikelets.
5438706 yellow nutsedge Cyperus esculentus leaf collar
5437531 sorghum-almum Sorghum almum ligule
5437199 giant foxtail Setaria faberi leaf collar, ligule and leaf shealth
5437238 goosegrass Eleusine indica ligule, leaf collar
5437055 cheatgrass Bromus tectorum leaf collar, leaf shealth and ligule
5387471 early watergrass Echinochloa oryzoides spikelets on inflorescence branch.
5387528 reed canarygrass Phalaris arundinacea spikelets on inflorescence branches.
5436523 annual bluegrass Poa annua Magnified ligule
5438342 sorghum Sorghum bicolor ligule
5437200 giant foxtail Setaria faberi ligule
5437239 goosegrass Eleusine indica
5437240 goosegrass Eleusine indica ligule
5437106 fall panicum Panicum dichotomiflorum ligule
5437107 fall panicum Panicum dichotomiflorum ligule
5437105 fall panicum Panicum dichotomiflorum ligule
5437056 cheatgrass Bromus tectorum ligule
5438631 wild oat Avena fatua
5438633 wild oat Avena fatua
5438634 wild oat Avena fatua
5438635 wild oat Avena fatua
5438700 yellow nutsedge Cyperus esculentus
5438701 yellow nutsedge Cyperus esculentus
5438702 yellow nutsedge Cyperus esculentus
5438703 yellow nutsedge Cyperus esculentus
5438483 timothy Phleum pratense
5438484 timothy Phleum pratense
5438485 timothy Phleum pratense
5438565 whitegrass Leersia virginica
5438463 tall fescue Festuca arundinacea
5438464 tall fescue Festuca arundinacea
5438460 tall fescue Festuca arundinacea
5438387 smooth brome Bromus inermis
5438390 smooth brome Bromus inermis
5438391 smooth brome Bromus inermis
5438392 smooth crabgrass Digitaria ischaemum
5438393 smooth crabgrass Digitaria ischaemum
5438337 sorghum Sorghum bicolor
5438338 sorghum Sorghum bicolor
5438339 sorghum Sorghum bicolor
5438340 sorghum Sorghum bicolor
5438341 sorghum Sorghum bicolor
5438290 reed canarygrass Phalaris arundinacea
5438291 reed canarygrass Phalaris arundinacea
5438231 quackgrass Elymus repens
5438232 quackgrass Elymus repens
5438233 quackgrass Elymus repens
5438234 quackgrass Elymus repens
5438235 quackgrass Elymus repens
5437975 orchardgrass Dactylis glomerata
5437976 orchardgrass Dactylis glomerata
5437861 Japanese stiltgrass Microstegium vimineum
5437862 Japanese stiltgrass Microstegium vimineum
5438201 purple robust Setaria viridis var. robustapurpurea
5438202 purple robust Setaria viridis var. robustapurpurea
5436590 barnyardgrass Echinochloa crus-galli
2131087 cogongrass Imperata cylindrica
5416452 squirreltail Elymus elymoides native grass in sea of Bromus tectorum
2132090 cogongrass Imperata cylindrica
5437198 giant foxtail Setaria faberi
5437057 cheatgrass Bromus tectorum
5438705 yellow nutsedge Cyperus esculentus
5438704 yellow nutsedge Cyperus esculentus
5438699 foxtail millet Setaria italica
5438698 foxtail millet Setaria italica
5438673 woolly cupgrass Eriochloa villosa
5438674 woolly cupgrass Eriochloa villosa
5438675 woolly cupgrass Eriochloa villosa
5438676 woolly cupgrass Eriochloa villosa
5438677 woolly cupgrass Eriochloa villosa
5438671 witchgrass Panicum capillare
5438672 witchgrass Panicum capillare
5438667 wild-proso millet Panicum miliaceum
5438668 wild-proso millet Panicum miliaceum
5438628 wild oat Avena fatua
5438709 yellow nutsedge Cyperus esculentus
5438679 woolly cupgrass Eriochloa villosa
5438678 woolly cupgrass Eriochloa villosa
5438482 timothy Phleum pratense
5438457 tall fescue Festuca arundinacea
5438458 tall fescue Festuca arundinacea
5438236 quackgrass Elymus repens
5438394 smooth crabgrass Digitaria ischaemum
5438014 perennial ryegrass Lolium perenne
5438015 perennial ryegrass Lolium perenne
5438016 perennial ryegrass Lolium perenne
5438010 perennial ryegrass Lolium perenne
5437529 johnsongrass Sorghum halepense
5437530 johnsongrass Sorghum halepense
5437164 longspine sandbur Cenchrus longispinus
2131091 cogongrass Imperata cylindrica Roadside infestation in flower
2132091 cogongrass Imperata cylindrica
2132087 cogongrass Imperata cylindrica Showing off-center midrib
5436758 rye brome Bromus secalinus
5436760 rye brome Bromus secalinus
5436761 rye brome Bromus secalinus
5437104 fall panicum Panicum dichotomiflorum
5437053 cheatgrass Bromus tectorum
5437054 cheatgrass Bromus tectorum
5436893 common reed Phragmites australis
5436891 common reed Phragmites australis
5436892 common reed Phragmites australis
5437250 green foxtail Setaria viridis
5437251 green foxtail Setaria viridis
5437247 green foxtail Setaria viridis
5437248 green foxtail Setaria viridis
5437249 green foxtail Setaria viridis
5437235 goosegrass Eleusine indica
5437237 goosegrass Eleusine indica
5437234 goosegrass Eleusine indica
5437218 giant foxtail Setaria faberi
5437165 longspine sandbur Cenchrus longispinus
5437166 longspine sandbur Cenchrus longispinus
5437162 longspine sandbur Cenchrus longispinus
5437163 longspine sandbur Cenchrus longispinus
5437050 cheatgrass Bromus tectorum
5437051 cheatgrass Bromus tectorum
5437052 cheatgrass Bromus tectorum
5437049 cheatgrass Bromus tectorum
5437534 johnsongrass Sorghum halepense
5437556 Kentucky bluegrass Poa pratensis
5437557 Kentucky bluegrass Poa pratensis
5437553 small carpetgrass, joint-head grass Arthraxon hispidus
5437554 small carpetgrass, joint-head grass Arthraxon hispidus
5437555 small carpetgrass, joint-head grass Arthraxon hispidus
5437547 jointed goatgrass Aegilops cylindrica
5437552 jointed goatgrass Aegilops cylindrica
5437551 jointed goatgrass Aegilops cylindrica
5436622 bristly foxtail Setaria verticillata
5436599 bermudagrass Cynodon dactylon
5436597 bermudagrass Cynodon dactylon
5436591 barnyardgrass Echinochloa crus-galli
5436522 annual bluegrass Poa annua
5436592 barnyardgrass Echinochloa crus-galli
5436521 annual bluegrass Poa annua
5436539 Italian ryegrass Festuca perennis
5436540 Italian ryegrass Festuca perennis
5436537 Italian ryegrass Festuca perennis
5436519 annual bluegrass Poa annua
5436520 annual bluegrass Poa annua
5436517 annual bluegrass Poa annua
5436518 annual bluegrass Poa annua
2131085 cogongrass Imperata cylindrica
2131088 cogongrass Imperata cylindrica
1237085 Chinese silvergrass Miscanthus sinensis Infestation along trail
2155099 vaseygrass Paspalum urvillei
2132052 cogongrass Imperata cylindrica
2186086 cogongrass Imperata cylindrica Plant Base
2186082 triticosecale x Triticosecale N/A
5331034 pearl millet Pennisetum glaucum Tifgrain 102 pearl millet
5331029 pearl millet Pennisetum glaucum interior of seed head / panicle
5331027 pearl millet Pennisetum glaucum combine harvesting pearl millet
2308110 Japanese stiltgrass Microstegium vimineum
2132092 cogongrass Imperata cylindrica
2132029 cogongrass Imperata cylindrica
2131086 cogongrass Imperata cylindrica
2131090 cogongrass Imperata cylindrica Small infestation in woods
5392828 waxy mannagrass Glyceria declinata
5387391 leporinum barley Hordeum murinum ssp. leporinum population.
5387188 weedy brome Bromus alopecuros Inflorescences of weedy brome (Bromus alopecuros) right and soft brome (Bromus hordeaceus) left.
5387223 rhodesgrass Chloris gayana spikelets and florets.
5387467 late barnyard grass Echinochloa oryzicola spikelets on inflorescence branch.
5392829 waxy mannagrass Glyceria declinata
5392831 waxy mannagrass Glyceria declinata
5392825 waxy mannagrass Glyceria declinata
5392826 waxy mannagrass Glyceria declinata
5392827 waxy mannagrass Glyceria declinata
5392823 waxy mannagrass Glyceria declinata
5392824 waxy mannagrass Glyceria declinata
5392830 waxy mannagrass Glyceria declinata
5387560 California cordgrass Spartina foliosa in its native habitat in the San Francisco Bay.
5387512 knotgrass Paspalum distichum in native habitat along bank of stream.
5387107 foxtail pricklegrass Crypsis alopecuroides collar and sheath.
5387105 foxtail pricklegrass Crypsis alopecuroides
5387106 foxtail pricklegrass Crypsis alopecuroides inflorescence.
5387102 swamp pricklegrass Crypsis schoenoides inflorescences.
5387101 swamp pricklegrass Crypsis schoenoides
5387562 California cordgrass Spartina foliosa collar and sheath.
5387543 Chilean rabbitsfoot grass Polypogon australis inflorescence
5387515 knotgrass Paspalum distichum collar and sheath.
5387472 early watergrass Echinochloa oryzoides collar and sheath, ligule lacking
5387468 late barnyard grass Echinochloa oryzicola collar and sheath, ligule lacking
5387462 rough barnyardgrass Echinochloa muricata collar and sheath.
5387396 leporinum barley Hordeum murinum ssp. leporinum collar and sheath.
5387354 southwestern cupgrass Eriochloa acuminata collar and sheath.
5387352 southwestern cupgrass Eriochloa acuminata inflorescence.
5387353 southwestern cupgrass Eriochloa acuminata spikelets.
5387349 Mexican lovegrass Eragrostis mexicana ssp. virescens collar and sheath.
5387333 Mediterranean lovegrass Eragrostis barrelieri gland at base of inflorescence branches
5387334 Mediterranean lovegrass Eragrostis barrelieri collar and sheath.
5387327 desert lovegrass Eragrostis pectinacea var. miserrima spikelets.
5387328 desert lovegrass Eragrostis pectinacea var. miserrima collar and sheath.
5387302 threespike goosegrass Eleusine tristachya collar and sheath.
5387221 Australian fingergrass Chloris truncata collar and sheath.
5387193 Australian chess Bromus arenarius collar and sheath.
5387190 weedy brome Bromus alopecuros ligule and collar.
5387185 field brome Bromus arvensis spikelets.
5387186 field brome Bromus arvensis collar and sheath.
5387184 field brome Bromus arvensis inflorescence.
5386217 hood canarygrass Phalaris paradoxa collar and sheath.
5387561 California cordgrass Spartina foliosa inflorescence.
5387513 knotgrass Paspalum distichum inflorescence.
5387514 knotgrass Paspalum distichum Creeping stem of knotgrass
5387473 early watergrass Echinochloa oryzoides
5387466 late barnyard grass Echinochloa oryzicola inflorescence.
5387470 early watergrass Echinochloa oryzoides inflorescence.
5387463 rough barnyardgrass Echinochloa muricata
5387461 rough barnyardgrass Echinochloa muricata inflorescence.
5387416 rigid ryegrass Lolium rigidum inflorescence.
5387394 smooth barley Hordeum murinum ssp. glaucum inflorescence.
5387347 Mexican lovegrass Eragrostis mexicana ssp. virescens inflorescence.
5387301 threespike goosegrass Eleusine tristachya inflorescences.
5387331 Mediterranean lovegrass Eragrostis barrelieri inflorescence.
5387326 desert lovegrass Eragrostis pectinacea var. miserrima inflorescences.
5387145 little quakinggrass Briza minor
5387146 little quakinggrass Briza minor inflorescence.
5387261 crested dogtailgrass Cynosurus cristatus inflorescence.
5387220 Australian fingergrass Chloris truncata inflorescences.
5387192 Australian chess Bromus arenarius inflorescence.
5387189 weedy brome Bromus alopecuros inflorescence at maturity.
5386216 hood canarygrass Phalaris paradoxa inflorescence.
5386188 knotgrass Paspalum distichum
5387325 desert lovegrass Eragrostis pectinacea var. miserrima
5387330 Mediterranean lovegrass Eragrostis barrelieri
5387300 threespike goosegrass Eleusine tristachya
5387219 Australian fingergrass Chloris truncata
5387392 leporinum barley Hordeum murinum ssp. leporinum
5387351 southwestern cupgrass Eriochloa acuminata
5387346 Mexican lovegrass Eragrostis mexicana ssp. virescens
5386215 hood canarygrass Phalaris paradoxa
5422901 reed canarygrass Phalaris arundinacea
5422035 tall fescue Festuca arundinacea
5422036 cogongrass Imperata cylindrica
5422126 cogongrass Imperata cylindrica
5421991 johnsongrass Sorghum halepense Ligule In September
5421981 cogongrass Imperata cylindrica In May rhizomes
5416324 squirreltail Elymus elymoides
5410648 rice Oryza sativa Rice disease nursey.
5410620 rice Oryza sativa Heads showing boot split and headed growth stages.
5410636 rice Oryza sativa Headed rice with heads completely exerted.
5410637 rice Oryza sativa Heading rice with heads partially exerted.
5410610 rice Oryza sativa Rice with 10% of heads showing heads.
5411059 yellow bluestem Bothriochloa ischaemum var. songarica
5411058 yellow bluestem Bothriochloa ischaemum var. songarica
5411038 yellow bluestem Bothriochloa ischaemum var. songarica
5411042 yellow bluestem Bothriochloa ischaemum var. songarica
5411024 yellow bluestem Bothriochloa ischaemum var. songarica
5411021 yellow bluestem Bothriochloa ischaemum var. songarica
5405053 giant reed Arundo donax
5405029 purple nutsedge Cyperus rotundus
5403894 feather reed grass Calamagrostis x acutiflora
5400548 maidencane Panicum hemitomon
2186072 common wheat Triticum aestivum Triticum aestivum var spada on left, T. durum in middle, and T. aestivum var mec. on right
2186056 cereal rye Secale cereale
2186030 canarygrass Phalaris spp.
2186035 kikuyugrass Pennisetum clandestinum
2186011 poison ryegrass Lolium temulentum Lolium temulentum seeds on the left and L. remotum seeds on the right
2186012 poison ryegrass Lolium temulentum
2173062 flatsedge Cyperus spp.
2185080 sterile oat Avena sterilis
2185078 wild oat Avena fatua
2185079 animated oat Avena sterilis ssp. ludoviciana
5390379 broadleaf carpetgrass Axonopus compressus Plant
5390296 stinkgrass Eragrostis cilianensis Plant
5273083 Canada bluegrass Poa compressa
5273079 Canada bluegrass Poa compressa Cross-section of Compressed Stems
5273080 Canada bluegrass Poa compressa
5273081 Canada bluegrass Poa compressa
5273082 Canada bluegrass Poa compressa
5273078 Canada bluegrass Poa compressa
5273072 common reed Phragmites australis Inflorescence Variation
5273073 common reed Phragmites australis
5273066 common reed Phragmites australis
5273067 common reed Phragmites australis Size comparison
5273056 reed canarygrass Phalaris arundinacea
5273057 reed canarygrass Phalaris arundinacea
5273058 reed canarygrass Phalaris arundinacea
5273054 reed canarygrass Phalaris arundinacea
5273055 reed canarygrass Phalaris arundinacea
5273013 Chinese silvergrass Miscanthus sinensis
5273010 Chinese silvergrass Miscanthus sinensis
5273011 Chinese silvergrass Miscanthus sinensis
5271071 Japanese stiltgrass Microstegium vimineum
5271072 Japanese stiltgrass Microstegium vimineum Comparison of infructescences of M. vimineum (bottom) and Leersia virginica (top)
5271073 Japanese stiltgrass Microstegium vimineum
5271068 Japanese stiltgrass Microstegium vimineum
5271069 Japanese stiltgrass Microstegium vimineum Fall color
5271070 Japanese stiltgrass Microstegium vimineum
5271067 Japanese stiltgrass Microstegium vimineum
5270032 silver hairgrass Aira caryophyllea
5270030 silver hairgrass Aira caryophyllea
5270031 silver hairgrass Aira caryophyllea
5270029 silver hairgrass Aira caryophyllea
5270024 cheatgrass Bromus tectorum
5387565 common cordgrass Spartina anglica collar and sheath.
5387566 common cordgrass Spartina anglica Newly emerging shoot of common cordgrass
5387406 Italian ryegrass Festuca perennis plant.
5387207 field sandbur Cenchrus spinifex plant.
5387208 field sandbur Cenchrus spinifex inflorescence.
5387209 field sandbur Cenchrus spinifex collar and sheath.
5387363 tall fescue Festuca arundinacea plant.
5387364 tall fescue Festuca arundinacea inflorescence.
5387366 tall fescue Festuca arundinacea collar and sheath.
5387564 saltmeadow cordgrass Spartina patens collar and sheath.
5387557 denseflower cordgrass Spartina densiflora growing as a bunchgrass.
5387558 denseflower cordgrass Spartina densiflora inflorescence.
5387559 denseflower cordgrass Spartina densiflora collar and sheath.
5387556 denseflower cordgrass Spartina densiflora infestation
5387553 smooth cordgrass Spartina alterniflora inflorescence.
5387554 smooth cordgrass Spartina alterniflora collar and sheath.
5387552 cordgrass Spartina spp. Hybrid between smooth cordgrass (Spartina alterniflora) and California cordgrass (Spartina foliosa)
5387551 cordgrass Spartina spp. Spartina alterniflora (tall) growing with the native California cordgrass, Spartina foliosa (short)
5387547 water-bent Polypogon viridis inflorescence.
5387548 rabbitfoot polypogon Polypogon monspeliensis
5387535 rabbitfoot polypogon Polypogon monspeliensis inflorescence.
5387536 rabbitfoot polypogon Polypogon monspeliensis collar and sheath.
5387526 reed canarygrass Phalaris arundinacea in its native habitat along a river.
5387527 reed canarygrass Phalaris arundinacea inflorescence.
5387521 bulbous canarygrass Phalaris aquatica grows on both wet and dry sites.
5387522 bulbous canarygrass Phalaris aquatica inflorescences.
5387523 bulbous canarygrass Phalaris aquatica collar and sheath.
5387519 bahiagrass Paspalum notatum as a turf weed.
5387517 vaseygrass Paspalum urvillei inflorescence.
5387505 dallisgrass Paspalum dilatatum habit. A common weed of wet and dry areas.
5387506 dallisgrass Paspalum dilatatum inflorescence.
5387509 dallisgrass Paspalum dilatatum collar and sheath.
5387510 dallisgrass Paspalum dilatatum seedling.
5387503 ravennagrass Ripidium ravennae collar and sheath.
5387500 ravennagrass Ripidium ravennae habit in riparian site.
5387501 ravennagrass Ripidium ravennae inflorescence.
5387502 ravennagrass Ripidium ravennae Young bunchgrass of ravennagrass
5387497 common reed Phragmites australis in native habitat along stream.
5387498 common reed Phragmites australis inflorescence.
5387493 giant reed Arundo donax Second-year branching pattern of giant reed
5387494 giant reed Arundo donax collar and sheath region.
5387495 giant reed Arundo donax vegetatively reproducing from stem fragment.
5387489 giant reed Arundo donax adjacent to riparian area
5387490 giant reed Arundo donax within stream.
5387491 giant reed Arundo donax along roadside.
5387492 giant reed Arundo donax inflorescence. No viable seed are produced.
5387465 cockspur grass Echinochloa spp. Inflorescences of barnyardgrass (Echinochloa crus-galli) left, late watergrass (Echinochloa oryicola) center,and early watergrass (Echinochloa oryzoides) right
5387456 barnyardgrass Echinochloa crus-galli spikelets on inflorescence branch.
5387457 barnyardgrass Echinochloa crus-galli collar and sheath, liogule lacking
5387455 barnyardgrass Echinochloa crus-galli inflorescence.
5387452 junglerice Echinochloa colona seedling.
5387423 nimblewill Muhlenbergia schreberi stem and inflorescence.
5387424 nimblewill Muhlenbergia schreberi stolons.
5387425 nimblewill Muhlenbergia schreberi collar and sheath.
5387422 nimblewill Muhlenbergia schreberi inflorescences.
5387413 perennial ryegrass Lolium perenne spikelets.
5387414 perennial ryegrass Lolium perenne collar and sheath.
5387418 poison ryegrass Lolium temulentum inflorescence.
5387419 poison ryegrass Lolium temulentum spikelet with glume longer than florets.
5387420 poison ryegrass Lolium temulentum collar and sheath.
5387412 perennial ryegrass Lolium perenne plant.
5387404 cereal rye Secale cereale collar and sheath.
5387401 cereal rye Secale cereale field.
5387402 cereal rye Secale cereale inflorescences.
5387397 foxtail barley Hordeum jubatum plant.
5387398 foxtail barley Hordeum jubatum inflorescences.
5387399 foxtail barley Hordeum jubatum collar and sheath.
5387383 common velvetgrass Holcus lanatus plant.
5387384 common velvetgrass Holcus lanatus inflorescences, typically closed prior to flowering.
5387385 common velvetgrass Holcus lanatus collar and sheath.
5387377 tanglehead Heteropogon contortus plant.
5387378 tanglehead Heteropogon contortus inflorescence.
5387379 tanglehead Heteropogon contortus with tangled caryopses.
5387380 tanglehead Heteropogon contortus collar and sheath.
5387371 nit grass Gastridium phleoides collar and sheath.
5387369 nit grass Gastridium phleoides inflorescences at flowering.
5387370 nit grass Gastridium phleoides inflorescences at fruiting.
5387360 prairie cupgrass Eriochloa contracta seedling.
5387356 prairie cupgrass Eriochloa contracta plant.
5387357 prairie cupgrass Eriochloa contracta inflorescence.
5387358 prairie cupgrass Eriochloa contracta spikelets.
5387359 prairie cupgrass Eriochloa contracta collars and sheaths.
5387344 Lehmann lovegrass Eragrostis lehmanniana collar and sheaths.
5387341 Lehmann lovegrass Eragrostis lehmanniana plants.
5387342 Lehmann lovegrass Eragrostis lehmanniana open and closed inflorescences.
5387338 weeping lovegrass Eragrostis curvula tuft of hairs at base of inflorescence branches.
5387339 weeping lovegrass Eragrostis curvula collar and sheath.
5387336 weeping lovegrass Eragrostis curvula plants.
5387337 weeping lovegrass Eragrostis curvula inflorescence.
5387323 little lovegrass Eragrostis minor collar and sheath.
5387320 little lovegrass Eragrostis minor infestation in an agricultural field.
5387321 little lovegrass Eragrostis minor inflorescence.
5387322 little lovegrass Eragrostis minor spikelets.
5387318 stinkgrass Eragrostis cilianensis collar and sheath.
5387315 stinkgrass Eragrostis cilianensis plant.
5387316 stinkgrass Eragrostis cilianensis inflorescence.
5387317 stinkgrass Eragrostis cilianensis spikelets.
5387297 goosegrass Eleusine indica collar and sheath.
5387295 goosegrass Eleusine indica plant in an erect form.
5387296 goosegrass Eleusine indica More typical low-growing goosegrass plant.
5387293 longflowered veldtgrass Ehrharta longiflora inflorescence.
5387291 panic veldtgrass Ehrharta erecta collar and sheath.
5387283 perennial veldtgrass Ehrharta calycina infestation.
5387284 perennial veldtgrass Ehrharta calycina plant.
5387285 perennial veldtgrass Ehrharta calycina inflorescences.
5387286 perennial veldtgrass Ehrharta calycina collar and sheath.
5387289 panic veldtgrass Ehrharta erecta infestation.
5387290 panic veldtgrass Ehrharta erecta inflorescence.
5387280 carpetgrass Axonopus fissifolius in turf.
5387281 carpetgrass Axonopus fissifolius infloresence.
5387274 large crabgrass Digitaria sanguinalis inflorescence.
5387275 large crabgrass Digitaria sanguinalis collar and sheath. Sheath often hairier.
5387276 large crabgrass Digitaria sanguinalis node with adventitious roots.
5387273 large crabgrass Digitaria sanguinalis plant.
5387269 smooth crabgrass Digitaria ischaemum plant.
5387270 smooth crabgrass Digitaria ischaemum inflorescence.
5387271 smooth crabgrass Digitaria ischaemum collar and sheath.
5387265 orchardgrass Dactylis glomerata inflorescence.
5387266 orchardgrass Dactylis glomerata collar and sheath.
5387263 orchardgrass Dactylis glomerata plants and inflorescences.
5387264 orchardgrass Dactylis glomerata plant.
5387256 hedgehog dogtailgrass Cynosurus echinatus plant.
5387257 hedgehog dogtailgrass Cynosurus echinatus inflorescence at flowering.
5387258 hedgehog dogtailgrass Cynosurus echinatus inflorescence at fruiting.
5387259 hedgehog dogtailgrass Cynosurus echinatus collar and sheath.
5387242 Chinese silvergrass Miscanthus sinensis collar and sheath.
5387251 saltgrass Distichlis spicata female plant.
5387252 saltgrass Distichlis spicata inflorescence.
5387253 saltgrass Distichlis spicata inflorescence with female flowers only.
5387254 saltgrass Distichlis spicata collar and sheath.
5387244 bermudagrass Cynodon dactylon plant.
5387237 Uruguayan pampas grass Cortaderia selloana collar and sheath.
5387240 Chinese silvergrass Miscanthus sinensis plant.
5387241 Chinese silvergrass Miscanthus sinensis inflorescences.
5387228 purple pampasgrass Cortaderia jubata infestation along coast.
5387229 purple pampasgrass Cortaderia jubata plant in a redwood forest.
5387230 purple pampasgrass Cortaderia jubata inflorescence.
5387231 purple pampasgrass Cortaderia jubata collar and sheath.
5387232 purple pampasgrass Cortaderia jubata seedlings.
5387235 Uruguayan pampas grass Cortaderia selloana female plant.
5387236 Uruguayan pampas grass Cortaderia selloana male right and female
5387225 crowfootgrass Dactyloctenium aegyptium inflorescence.
5387226 crowfootgrass Dactyloctenium aegyptium collar and sheath.
5387215 feather fingergrass Chloris virgata plant.
5387216 feather fingergrass Chloris virgata inflorescence.
5387217 feather fingergrass Chloris virgata collar and sheath.
5387212 longspine sandbur Cenchrus longispinus inflorescence.
5387213 longspine sandbur Cenchrus longispinus collar and sheath.
5387205 southern sandbur Cenchrus echinatus inflorescence.
5387201 smooth brome Bromus inermis inflorescence.
5387202 smooth brome Bromus inermis collar and sheath.
5387199 smooth brome Bromus inermis population.
5387200 smooth brome Bromus inermis plant.
5387197 rattlesnake brome Bromus briziformis collar and sheath.
5387195 rattlesnake brome Bromus briziformis inflorescence.
5387180 soft brome Bromus hordeaceus inflorescence.
5387181 soft brome Bromus hordeaceus collar and sheath.
5387177 poverty brome Bromus sterilis collar and sheath.
5387162 cheatgrass Bromus tectorum inflorescence just before flowering.
5387163 cheatgrass Bromus tectorum inflorescence at maturity.
5387165 cheatgrass Bromus tectorum collar and sheath.
5387176 poverty brome Bromus sterilis inflorescence.
5387156 California brome Bromus carinatus spikelets.
5387158 ripgut brome Bromus diandrus inflorescence.
5387159 ripgut brome Bromus diandrus collar and sheath.
5387161 cheatgrass Bromus tectorum plant.
5387152 rescuegrass Bromus catharticus collar and sheath.
5387154 California brome Bromus carinatus plant, a nonweedy native perennial similar to rescuegrass Bromus catharticus
5387155 California brome Bromus carinatus inflorescence.
5387149 rescuegrass Bromus catharticus plant.
5387150 rescuegrass Bromus catharticus inflorescence.
5387151 rescuegrass Bromus catharticus spikelet.
5387143 big quakinggrass Briza maxima collar and sheath.
5387141 big quakinggrass Briza maxima infestation.
5387142 big quakinggrass Briza maxima inflorescence.
5387137 annual false-brome Brachypodium distachyon inflorescences with several spikelets.
5387138 annual false-brome Brachypodium distachyon inflorescences with few spikelets.
5387139 annual false-brome Brachypodium distachyon collar and sheath.
5387136 sterile oat Avena sterilis spikelets.
5387132 oat Avena sativa inflorescence.
5387133 oat Avena sativa collar and sheath.
5387124 slender oat Avena barbata collar and sheath.
5387127 wild oat Avena fatua immature plant.
5387128 wild oat Avena fatua inflorescence.
5386241 Kentucky bluegrass Poa pratensis inflorescence and spikelets at flowering.
5387117 sweet vernalgrass Anthoxanthum odoratum with closed inflorescence after flowering.
5387118 sweet vernalgrass Anthoxanthum odoratum collar and sheath with long ligule.
5387119 sweet vernalgrass Anthoxanthum odoratum collar and sheath with short ligule.
5387122 slender oat Avena barbata inflorescence.
5387116 sweet vernalgrass Anthoxanthum odoratum with open inflorescence during flowering.
5387110 European beachgrass Ammophila arenaria infestation in a dune system.
5387111 European beachgrass Ammophila arenaria plant.
5387112 European beachgrass Ammophila arenaria inflorescence.
5387113 European beachgrass Ammophila arenaria collar and sheath.
5387086 creeping bentgrass Agrostis stolonifera plants after flowering.
5387087 creeping bentgrass Agrostis stolonifera inflorescence.
5387088 creeping bentgrass Agrostis stolonifera collar and sheath.
5387095 colonial bentgrass Agrostis capillaris inflorescence.
5387096 water-bent Polypogon viridis inflorescence. Some floras refer to this as Agrostis viridis.
5387091 Pacific bentgrass Agrostis avenacea plant.
5387092 Pacific bentgrass Agrostis avenacea inflorescence.
5387093 Pacific bentgrass Agrostis avenacea collar and sheath.
5387084 barb goatgrass Aegilops triuncialis collar and sheath.
5387081 barb goatgrass Aegilops triuncialis infestation.
5387082 barb goatgrass Aegilops triuncialis inflorescence.
5387075 jointed goatgrass Aegilops cylindrica collar and sheath.
5387065 punagrass Achnatherum brachychaetum inflorescence.
5387066 punagrass Achnatherum brachychaetum cleistogamous flowers within base of culm.
5387072 jointed goatgrass Aegilops cylindrica plants.
5387073 jointed goatgrass Aegilops cylindrica inflorescences.
5387074 jointed goatgrass Aegilops cylindrica embedded spikelets.
5387064 punagrass Achnatherum brachychaetum immature plant in an alfalfa field.
5386324 squirreltail fescue Vulpia bromoides inflorescences.
5386325 squirreltail fescue Vulpia bromoides
5386328 smutgrass Sporobolus indicus
5386314 medusahead Taeniatherum caput-medusae inflorescence with mature fruit.
5386315 medusahead Taeniatherum caput-medusae shiny patch after senescence.
5386316 medusahead Taeniatherum caput-medusae
5386313 medusahead Taeniatherum caput-medusae inflorescence at flowering.
5386244 smilograss Piptatherum miliaceum
5386307 smutgrass Sporobolus indicus flowering stems.
5386308 smutgrass Sporobolus indicus inflorescences.
5386309 smutgrass Sporobolus indicus
5386299 johnsongrass Sorghum halepense plant with some inflorescences containing a fungus.
5386300 johnsongrass Sorghum halepense inflorescence.
5386301 johnsongrass Sorghum halepense inflorescence with a fungus.
5386304 johnsongrass Sorghum halepense collar and sheath.
5386298 johnsongrass Sorghum halepense plant.
5386294 sorghum Sorghum bicolor flowering stems.
5386295 sorghum Sorghum bicolor inflorescence.
5386296 sorghum Sorghum bicolor collar and sheath.
5386281 green foxtail Setaria viridis inflorescence.
5386282 green foxtail Setaria viridis collar and sheath.
5386276 yellow foxtail Setaria pumila inflorescence.
5386277 yellow foxtail Setaria pumila collar and sheath.
5386289 bristly foxtail Setaria verticillata plant.
5386290 bristly foxtail Setaria verticillata inflorescence.
5386291 bristly foxtail Setaria verticillata collar and sheath.
5386269 hardgrass Sclerochloa dura inflorescences.
5386270 hardgrass Sclerochloa dura collar and sheath.
5386272 giant foxtail Setaria faberi inflorescence.
5386273 giant foxtail Setaria faberi collar and sheath.
5386268 hardgrass Sclerochloa dura plant.
5386266 common mediterraneangrass Schismus barbatus collar and sheath.
5386263 common mediterraneangrass Schismus barbatus plant.
5386264 common mediterraneangrass Schismus barbatus inflorescence.
5386265 common mediterraneangrass Schismus barbatus base with some leaves lacking blades.
5386260 Arabian schismus Schismus arabicus plant.
5386261 Arabian schismus Schismus arabicus inflorescence.
5386257 Kentucky bluegrass Poa pratensis inflorescence and spikelets at flowering.
5386254 roughstalk bluegrass Poa trivialis inflorescences.
5386259 Arabian schismus Schismus arabicus infestation.
5386249 Canada bluegrass Poa compressa collar and sheath.
5386258 rabbitfoot polypogon Polypogon monspeliensis mature plant in a seasonally moist grassland.
5386251 fowl bluegrass Poa palustris inflorescence.
5386247 Canada bluegrass Poa compressa plants.
5386248 Canada bluegrass Poa compressa inflorescences.
5386242 Kentucky bluegrass Poa pratensis inflorescence and spikelets at flowering.
5386243 Kentucky bluegrass Poa pratensis inflorescence at fruiting stage.
5386245 Kentucky bluegrass Poa pratensis collar and sheath.
5386238 bulbous bluegrass Poa bulbosa
5386239 bulbous bluegrass Poa bulbosa bulbs at base of culm.  
5386235 bulbous bluegrass Poa bulbosa
5386236 bulbous bluegrass Poa bulbosa inflorescence with bulblets.
5386237 bulbous bluegrass Poa bulbosa inflorescence lacking bulblets.
5386229 annual bluegrass Poa annua inflorescence.
5386232 annual bluegrass Poa annua
5386228 annual bluegrass Poa annua
5386226 smilograss Piptatherum miliaceum collar and sheath.
5386224 smilograss Piptatherum miliaceum inflorescence.
5386221 canarygrass Phalaris canariensis inflorescence.
5386222 canarygrass Phalaris canariensis collar and sheath.
5386220 canarygrass Phalaris canariensis flowering stems.
5386213 littleseed canarygrass Phalaris minor spikelets and florets.
5386209 St. Augustinegrass Stenotaphrum secundatum inflorescence.
5386206 buffelgrass Pennisetum ciliare collar and sheath.
5386210 littleseed canarygrass Phalaris minor plant.
5386212 littleseed canarygrass Phalaris minor collar and sheath.
5386204 buffelgrass Pennisetum ciliare plant.
5386205 buffelgrass Pennisetum ciliare inflorescence.
5386201 feathertop Pennisetum villosum inflorescence.
5386202 feathertop Pennisetum villosum collar and sheath.
5386200 feathertop Pennisetum villosum plant.
5386199 crimson fountaingrass Pennisetum setaceum plant. Rarely escaped from cultivation.
5386195 crimson fountaingrass Pennisetum setaceum inflorescence.
5386196 crimson fountaingrass Pennisetum setaceum young bunchgrass.
5386197 crimson fountaingrass Pennisetum setaceum collar and sheath.
5386193 crimson fountaingrass Pennisetum setaceum infestation.
5386194 crimson fountaingrass Pennisetum setaceum
5386192 kikuyugrass Pennisetum clandestinum collar and sheath.
5386190 kikuyugrass Pennisetum clandestinum
5386189 kikuyugrass Pennisetum clandestinum
5386184 wild-proso millet Panicum miliaceum immature inflorescence.
5386185 wild-proso millet Panicum miliaceum collar and sheath.
5386183 wild-proso millet Panicum miliaceum mature inflorescence.
5386179 fall panicum Panicum dichotomiflorum inflorescence.
5386180 fall panicum Panicum dichotomiflorum collar and sheath.
5386178 fall panicum Panicum dichotomiflorum
5386171 witchgrass Panicum capillare
5386173 witchgrass Panicum capillare
5386174 witchgrass Panicum capillare collar and sheath.
5386169 blue panicum Panicum antidotale collar and sheath
5386168 blue panicum Panicum antidotale rhizome
5386167 blue panicum Panicum antidotale
5374953 purple nutsedge Cyperus rotundus
5374956 purple nutsedge Cyperus rotundus tubers
5374951 yellow nutsedge Cyperus esculentus immature
5374949 yellow nutsedge Cyperus esculentus
5344084 cogongrass Imperata cylindrica
5272010 reed mannagrass Glyceria maxima
5272011 reed mannagrass Glyceria maxima
2131084 cogongrass Imperata cylindrica
2131089 cogongrass Imperata cylindrica Stuck in radiator of tractor
5276071 crimson fountaingrass Pennisetum setaceum Pennisetum planted in Bahamian landscape
5276065 burmareed Neyraudia reynaudiana
5368028 cogongrass Imperata cylindrica
5270082 Japanese sedge Carex kobomugi
5270083 Japanese sedge Carex kobomugi
5270084 Japanese sedge Carex kobomugi
5270085 Japanese sedge Carex kobomugi
5270086 Japanese sedge Carex kobomugi
5331032 pearl millet Pennisetum glaucum millet forage variety trials
5331026 pearl millet Pennisetum glaucum pearl millet can be used as a forage crop
5271065 Japanese stiltgrass Microstegium vimineum
5271066 Japanese stiltgrass Microstegium vimineum
5273074 common reed Phragmites australis Rhizomes
5273068 common reed Phragmites australis
5273069 common reed Phragmites australis
5273070 common reed Phragmites australis
5273071 common reed Phragmites australis Hairs at Leaf-stem Junction
5273012 Chinese silvergrass Miscanthus sinensis Dehiscing seeds
5273014 Chinese silvergrass Miscanthus sinensis
5270025 cheatgrass Bromus tectorum
5270026 cheatgrass Bromus tectorum
5270027 cheatgrass Bromus tectorum Inflorescence close-up
5270028 cheatgrass Bromus tectorum
5273059 small carpetgrass, joint-head grass Arthraxon hispidus Close-up of leaves and stem
5273060 small carpetgrass, joint-head grass Arthraxon hispidus
5273061 small carpetgrass, joint-head grass Arthraxon hispidus
5273062 small carpetgrass, joint-head grass Arthraxon hispidus Clasping leaf bases
5273063 small carpetgrass, joint-head grass Arthraxon hispidus
5273064 small carpetgrass, joint-head grass Arthraxon hispidus
5273065 small carpetgrass, joint-head grass Arthraxon hispidus
5139096 yellow foxtail Setaria pumila
5139097 yellow foxtail Setaria pumila
5139099 yellow foxtail Setaria pumila
5139092 giant foxtail Setaria faberi
5139093 giant foxtail Setaria faberi
5139094 giant foxtail Setaria faberi
5140001 green foxtail Setaria viridis
5139057 wild-proso millet Panicum miliaceum
5139058 wild-proso millet Panicum miliaceum
5139048 witchgrass Panicum capillare
5139049 witchgrass Panicum capillare
5139050 witchgrass Panicum capillare
5139052 witchgrass Panicum capillare
5139026 barnyardgrass Echinochloa crus-galli
5139028 barnyardgrass Echinochloa crus-galli
5139019 smooth crabgrass Digitaria ischaemum
5139023 smooth crabgrass Digitaria ischaemum
5138065 witchgrass Panicum capillare
5138066 witchgrass Panicum capillare
5138063 wirestem muhly Muhlenbergia frondosa
5138064 wirestem muhly Muhlenbergia frondosa
5138080 wild oat Avena fatua
5139007 yellow nutsedge Cyperus esculentus
5139008 yellow nutsedge Cyperus esculentus
1277127 sterile oat Avena sterilis Herbarium sheet
1277040 sterile oat Avena sterilis Australia

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