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Magnoliopsida

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
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70 Images of 28 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5358591 Mediterranean sage Salvia aethiopis Mediterranean sage (Salvia aethiopis) in bloom.
5358592 Mediterranean sage Salvia aethiopis Areas of grayish white in this landscape indicate an extensive infestation of Mediterranean sage (Salvia aethiopis) in bloom.
5358622 Mediterranean sage Salvia aethiopis Mediterranean sage (Salvia aethiopis) in full bloom.
5358633 leafy spurge Euphorbia esula Close-up view of the stem of leafy spurge (Euphorbia esula), showing latex oozing from a wound.
5358628 Canada thistle Cirsium arvense A Canada thistle (Cirsium arvense) plant going to seed.
5358627 hoary cress Lepidium draba Close-up view of  the leaves of hoary cress (Cardaria draba) growing as a weed on a field.
5358175 skeletonleaf bursage Ambrosia tomentosa Skeletonleaf bursage (Ambrosia tomentosa).
5358176 skeletonleaf bursage Ambrosia tomentosa Flowers and developing fruits of skeletonleaf bursage (Ambrosia tomentosa).
5358674 buffalobur Solanum rostratum Developing seed burs of buffalobur (Solanum rostratum).
5358673 wild mustard Sinapis arvensis Developing fruits of wild mustard (Sinapis arvensis, formerly known as Brassica kaber).
5358672 wild mustard Sinapis arvensis Wild mustard (Sinapis arvensis, formerly known as Brassica kaber) growing as a weed in a farm field.
5358670 puncturevine Tribulus terrestris Close-up view of the flowers of puncturevine (Tribulus terrestris).
5358669 puncturevine Tribulus terrestris Puncturevine (Tribulus terrestris).
5358667 common St. Johnswort Hypericum perforatum Close-up view of the flower of St. Johnswort (Hypericum perforatum).
5358665 common mullein Verbascum thapsus Close-up view of flowering stalks of common mullein (Verbascum thapsus).
5358664 common mullein Verbascum thapsus Common mullein (Verbascum thapsus) plants in bloom and setting seed.
5358663 Scotch thistle Onopordum acanthium Flower and flower buds on a Scotch thistle plant (Onopordum acanthium).
5358662 Scotch thistle Onopordum acanthium Scotch thistle plant (Onopordum acanthium) in bloom.
5358661 bull thistle Cirsium vulgare Close-up view of a leaf characteristic of bull thistle (Cirsium vulgare).
5358660 perennial pepperweed Lepidium latifolium Cattle grazing in the midst of a dense infestation of perennial pepperweed (Lepidium latifolium).
5358659 perennial pepperweed Lepidium latifolium Perennial pepperweed (Lepidium latifolium) plants, excavated to show the tops of their extensive root system.
5358658 musk thistle Carduus nutans Close-up view of the stems of musk thistle (Carduus nutans) showing spiny flanges, with a flower bud in the background.
5358657 musk thistle Carduus nutans Musk thistle (Carduus nutans) seedlings, with a ruler to show size.
5358656 musk thistle Carduus nutans Second-year rosette of musk thistle (Carduus nutans).
5358655 musk thistle Carduus nutans Musk thistle plants (Carduus nutans) growing along a fence.
5358654 Dalmatian toadflax Linaria dalmatica Close-up view of the blossoms of Dalmatian toadflax (Linaria dalmatica).
5358653 Dalmatian toadflax Linaria dalmatica View of Dalmatian toadflax (Linaria dalmatica) in bloom, showing characteristic clasping leaves and flower.
5358652 Dalmatian toadflax Linaria dalmatica Close-up view of the inflorescence -- flowers and buds -- of Dalmatian toadflax (Linaria dalmatica).
5358651 Dalmatian toadflax Linaria dalmatica Young Dalmatian toadflax plant (Linaria dalmatica) in bloom.
5358650 Dalmatian toadflax Linaria dalmatica Dalmatian toadflax plant (Linaria dalmatica) in bloom.
5358649 yellow toadflax Linaria vulgaris Close-up view of yellow toadflax (Linaria vulgaris) flowers, showing the coloration that gives it the alternate name, "butter and eggs."
5358648 yellow toadflax Linaria vulgaris Yellow toadflax (Linaria vulgaris) plants in bloom.
5358646 yellow toadflax Linaria vulgaris Yellow toadflax (Linaria vulgaris) in bloom.
5358647 yellow toadflax Linaria vulgaris Yellow toadflax (Linaria vulgaris) in bloom.
5358645 spotted knapweed Centaurea stoebe ssp. micranthos Landscape view of extensive infestations of spotted knapweed, Centaurea stoebe ssp. micranthos (Centaurea maculosa), in bloom.
5358644 diffuse knapweed Centaurea diffusa Close-up view of  flowers and buds of diffuse knapweed (Centaurea diffusa).
5358643 diffuse knapweed Centaurea diffusa Close-up view of a flower head and flower bud of diffuse knapweed (Centaurea diffusa), showing the spiny bracts.
5358642 diffuse knapweed Centaurea diffusa Diffuse knapweed plant (Centaurea diffusa) in bloom, against a fence.
5358641 spotted knapweed Centaurea stoebe ssp. micranthos Seedling spotted knapweed plant, Centaurea stoebe ssp. micranthos (Centaurea maculosa).
5358640 spotted knapweed Centaurea stoebe ssp. micranthos Close-up view of the flower heads of a spotted knapweed plant, Centaurea stoebe ssp. micranthos (Centaurea maculosa), showing the characteristic blackish spots on the bracts.
5358639 spotted knapweed Centaurea stoebe ssp. micranthos Spotted knapweed plant, Centaurea stoebe ssp. micranthos (Centaurea maculosa), just beginning to bolt.
5358638 spotted knapweed Centaurea stoebe ssp. micranthos Rosette of spotted knapweed, Centaurea stoebe ssp. micranthos (Centaurea maculosa), beginning to bolt.
5358637 spotted knapweed Centaurea stoebe ssp. micranthos Spotted knapweed plant, Centaurea stoebe ssp. micranthos (Centaurea maculosa), in bloom.
5358636 Russian knapweed Rhaponticum repens Close-up view of the stem and leaves of Russian knapweed (Acroptilon repens), showing characteristic fuzz (hairs, "knap").
5358635 Russian knapweed Rhaponticum repens Seedling Russian knapweed plant (Acroptilon repens).
5358634 Russian knapweed Rhaponticum repens Dr. George Beck, Colorado State University, measuring the root penetration of a Russian knapweed plant (Acroptilon repens).
5358632 Canada thistle Cirsium arvense Close-up view of buds and flower of Canada thistle (Cirsium arvense).
5358631 Canada thistle Cirsium arvense Mature Canada thistle plant, Cirsium arvense.
5358630 Canada thistle Cirsium arvense Close-up view of the spines and waxy cuticle of Canada thistle (Cirsium arvense) leaves.
5358629 Canada thistle Cirsium arvense Canada thistle (Cirsium arvense) at the rosette stage.
5358619 purple loosestrife Lythrum salicaria Infestation of purple loosestrife (Lythrum salicaria) in bloom.
5358615 Canada thistle Cirsium arvense Canada thistle plants (Cirsium arvense) going to seed along a roadside.
5358613 yellow toadflax Linaria vulgaris Extensive infestation of yellow toadflax (Linaria vulgaris).
5358597 musk thistle Carduus nutans Landscape view of rangeland near Collbran, Colorado, three years after efforts to eradicate musk thistle.
5358596 musk thistle Carduus nutans Field collection of musk thistle plants (Carduus nutans) harboring the biological control weevil, Trichosirocalus horridus.
5358594 leafy spurge Euphorbia esula Extensive infestation (monoculture) of leafy spurge, Euphorbia esula.
5358593 Lambert crazyweed Oxytropis lambertii Lambert's crazyweed (Oxytropis lambertii) in bloom.
5358590 yellow toadflax Linaria vulgaris Yellow toadflax (Linaria vulgaris) in bloom.
5358589 dalmatian toadflax Linaria dalmatica ssp. macedonica Dalmatian toadflax (Linaria genistifolia ssp. dalmatica) in bloom.
5358588 purple loosestrife Lythrum salicaria Infestation of purple loosestrife (Lythrum salicaria) in bloom.
5358587 columbine Aquilegia spp. Hybrid columbine (Aquilegia sp.) in a garden.
5358586 chicory Cichorium intybus Chicory (Cichorium intybus) in bloom.
5358585 chicory Cichorium intybus Chicory (Cichorium intybus) in bloom.
5358584 Queen Anne's lace, wild carrot Daucus carota Queen Anne's Lace (Daucus carota) plants in bloom.
5358583 Queen Anne's lace, wild carrot Daucus carota Close-up view of the flowers of Queen Anne's Lace (Daucus carota).
5358582 oriental virginsbower Clematis orientalis Oriental virgin's bower (Clematis orientalis) going to seed.
5358581 yellow sweetclover Melilotus officinalis Yellow sweetclover, Melilotus officinalis, in bloom.
5358580 yellow sweetclover Melilotus officinalis White sweetclover, Melilotus alba, in bloom.
5358579 spreadfruit goldenbanner Thermopsis divaricarpa Golden banner (Thermopsis divaricarpa) in bloom.
5358578 purple loosestrife Lythrum salicaria Purple loosestrife (Lythrum salicaria) in bloom.

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