Magnoliopsida

 

3439 records

 

Subject Scientific Name Order Family
glossy abelia Abelia x grandiflora (Rovelli ex André) Rehd. [chinensis × uniflora] Dipsacales Caprifoliaceae
okra Abelmoschus esculentus (L.) Moench Malvales Malvaceae
musk okra Abelmoschus moschatus Medik. Malvales Malvaceae
fragrant white sand verbena Abronia elliptica A. Nelson Caryophyllales Nyctaginaceae
sand verbena Abronia spp. Caryophyllales Nyctaginaceae
rosarypea Abrus precatorius L. Fabales Fabaceae (Leguminosae)
velvetleaf Abutilon theophrasti Medik Malvales Malvaceae
mulga Acacia aneura F. Muell. ex Benth. Fabales Fabaceae (Leguminosae)
earleaf acacia Acacia auriculiformis A. Cunningham ex Benth. Fabales Fabaceae (Leguminosae)
cootamundra wattle Acacia baileyana F. Muell. Fabales Fabaceae (Leguminosae)
koa Acacia koa Gray Fabales Fabaceae (Leguminosae)
Egyptian Thorn Acacia nilotica (L.) Willd. ex Delile Fabales Fabaceae (Leguminosae)
pearl wattle Acacia podalyriifolia A. Cunningham ex G. Don Fabales Fabaceae (Leguminosae)
acacia Acacia spp. P. Mill. Fabales Fabaceae (Leguminosae)
umbrella thorn Acacia tortilis (Forsskal) Hayne Fabales Fabaceae (Leguminosae)
twisted acacia Acacia tortuosa (L.) Willd. Fabales Fabaceae (Leguminosae)
fever tree Acacia xanthophloea Benth Fabales Fabaceae (Leguminosae)
slender copperleaf Acalypha gracilens Gray Euphorbiales Euphorbiaceae
hophornbeam copperleaf Acalypha ostryifolia Riddell Euphorbiales Euphorbiaceae
Virginia copperleaf Acalypha virginica L. Euphorbiales Euphorbiaceae
pitaya Acanthocereus spp. (Engelm. ex Berger) Britt. & Rose Caryophyllales Cactaceae
bristly starbur Acanthospermum hispidum DC Asterales Asteraceae
southern sugar maple Acer barbatum Michx. Sapindales Aceraceae
trident maple Acer buergerianum Miq. Sapindales Aceraceae
hedge maple Acer campestre L. Sapindales Aceraceae
vine maple Acer circinatum Pursh Sapindales Aceraceae
Amur maple Acer ginnala Maxim. Sapindales Aceraceae
paperbark maple Acer griseum Acer griseum (Franch.) Pax Sapindales Aceraceae
chalk maple Acer leucoderme Small Sapindales Aceraceae
bigleaf maple Acer macrophyllum Pursh Sapindales Aceraceae
boxelder Acer negundo L. Sapindales Aceraceae
black maple Acer nigrum Michx. f. Sapindales Aceraceae
Japanese maple Acer palmatum Thunb. Sapindales Aceraceae
striped maple Acer pensylvanicum L. Sapindales Aceraceae
Norway maple Acer platanoides L. Sapindales Aceraceae
Sycamore maple Acer pseudoplatanus L. Sapindales Aceraceae
red maple Acer rubrum L. Sapindales Aceraceae
Drummond's maple Acer rubrum var. drummondii (Hook. & Arn. ex Nutt.) Sarg. Sapindales Aceraceae
silver maple Acer saccharinum L. Sapindales Aceraceae
sugar maple Acer saccharum Marshall Sapindales Aceraceae
mountain maple Acer spicatum Lam. Sapindales Aceraceae
maple Acer spp. L. Sapindales Aceraceae
tatarian maple Acer tataricum L. Sapindales Aceraceae
fernleaf yarrow Achillea filipendulina Lam. Asterales Asteraceae
common yarrow Achillea millefolium L. Asterales Asteraceae
sneezewort yarrow Achillea ptarmica L. Asterales Asteraceae
yarrow Achillea spp. L. Asterales Asteraceae
vanilla leaf Achlys triphylla (Sm.) DC. Ranunculales Berberidaceae
Carmichael's monkshood Aconitum carmichaelii Debeaux Ranunculales Ranunculaceae
Columbian monkshood Aconitum columbianum Nutt. Ranunculales Ranunculaceae
larkspurleaf monkshood Aconitum delphiniifolium DC. Ranunculales Ranunculaceae
Venus' chariot Aconitum napellus L. Ranunculales Ranunculaceae
Russian knapweed Acroptilon repens (L.) DC. Asterales Asteraceae
black cohosh Actaea racemosa var. racemosa L. Ranunculales Ranunculaceae
red baneberry Actaea rubra (Ait.) Willd. Ranunculales Ranunculaceae
red baneberry Actaea rubra ssp. arguta (Ait.) Willd. (Nutt.) Hultén Ranunculales Ranunculaceae
kiwi Actinidia chinensis Planchon Theales Actinidiaceae
baobab tree/ monkey bread tree Adansonia digitata L. Malvales Bombacaceae
American trailplant Adenocaulon bicolor Hook. Asterales Asteraceae
summer pheasant's eye Adonis aestivalis L. Ranunculales Ranunculaceae
pheasanteye adonis Adonis annua L. Ranunculales Ranunculaceae
pheasant's eye Adonis parviceps Ranunculales Ranunculaceae
spring adonis Adonis vernalis L. Ranunculales Ranunculaceae
muskroot Adoxa moschatellina L. Dipsacales Adoxaceae
cactus Adromischus spp. Lem. Rosales Crassulaceae
ye gu Aeginetia indica L. Scrophulariales Orobanchaceae
aeginetia Aeginetia spp. L. Scrophulariales Orobanchaceae
bishops goutweed Aegopodium podagraria L. Apiales Apiaceae
Indian jointvetch Aeschynomene indica L. Fabales Fabaceae (Leguminosae)
yellow buckeye Aesculus flava Ait. Sapindales Hippocastanaceae
Ohio buckeye Aesculus glabra Willd. Sapindales Hippocastanaceae
common horse chestnut Aesculus hippocastanum L. Sapindales Hippocastanaceae
bottlebrush buckeye Aesculus parviflora Walt. Sapindales Hippocastanaceae
red buckeye Aesculus pavia L. Sapindales Hippocastanaceae
buckeye Aesculus spp. L. Sapindales Hippocastanaceae
painted buckeye Aesculus sylvatica Bartr. Sapindales Hippocastanaceae
red horsechestnut Aesculus x carnea Hayne. [pavia x hippocastanum] Sapindales Hippocastanaceae
beach false foxglove Agalinis fasciculata (Ell.) Raf. Scrophulariales Scrophulariaceae
purple false foxglove Agalinis purpurea (L.) Pennell Scrophulariales Scrophulariaceae
Florida hobblebush Agarista populifolia (Lam.) Judd Ericales Ericaceae
catnip gianthyssop Agastache nepetoides (L.) Kuntze Lamiales Lamiaceae
croftonweed Ageratina adenophora (Spreng.) King & H.E. Robins. Asterales Asteraceae
white snakeroot Ageratina altissima (L.) King & H.E. Robins. Asterales Asteraceae
white snakeroot Ageratina altissima var. altissima (L.) King & H. Rob. Asterales Asteraceae
lesser snakeroot Ageratina aromatica var. aromatica (L.) Spach Asterales Asteraceae
creeping croftonweed Ageratina riparia (Regel) King & H.E. Robins. Asterales Asteraceae
tropic ageratum Ageratum conyzoides L. Asterales Asteraceae
whiteweed Ageratum spp. L. Asterales Asteraceae
orange agoseris Agoseris aurantiaca (Hook.) Greene Asterales Asteraceae
pale agoseris Agoseris glauca (Pursh) Raf. Asterales Asteraceae
harvestlice Agrimonia parviflora Aiton Rosales Rosaceae
corn cockle Agrostemma githago L Caryophyllales Caryophyllaceae
tree-of-heaven Ailanthus altissima (P. Mill.) Swingle Sapindales Simaroubaceae
carpet bugle Ajuga reptans L. Lamiales Lamiaceae
chocolate vine Akebia quinata (Houtt.) Dcne. Ranunculales Lardizabalaceae
msuruwache Albizia gummifera (J.F. Gmel.) C.A. Smith Fabales Fabaceae (Leguminosae)
mimosa Albizia julibrissin Durazz. Fabales Fabaceae (Leguminosae)
woman's tongue tree Albizia lebbeck (L.) Benth Fabales Fabaceae (Leguminosae)
hollyhock Alcea rosea L. Malvales Malvaceae
lady's-mantle Alchemilla mollis (Buser) Rothm. Rosales Rosaceae
alectra Alectra arvensis (Benth.) Merr. Scrophulariales Scrophulariaceae
yerba de hierro Alectra fluminensis (Vell.) Stearn Scrophulariales Scrophulariaceae
alectra Alectra melampyroides (Rich.) Kuntze Scrophulariales Scrophulariaceae
Rocky Mountain Indian parsley Aletes anisatus (Gray) Theobald & Tseng Apiales Apiaceae
Indian walnut Aleurites moluccana (L.) Willd. Euphorbiales Euphorbiaceae
camelthorn Alhagi maurorum Medik Fabales Fabaceae (Leguminosae)
allanblackia Allanblackia shuhlmanii (Engl.) Engl. Theales Clusiaceae
garlic mustard Alliaria petiolata (Bieb.) Cavara & Grande Capparales Brassicaceae
desert oak Allocasuarina decaisneana F. Muell. Casuarinales Casuarinaceae
drooping sheoak Allocasuarina verticillata Ait. Casuarinales Casuarinaceae
alkalai marsh aster Almutaster pauciflorus (Nutt.) A.& D. Löve Asterales Asteraceae
European alder Alnus glutinosa (L.) Gaertn. Fagales Betulaceae
gray alder Alnus incana (L.) Moench Fagales Betulaceae
speckled alder Alnus incana ssp. rugosa (Du Roi) R.T. Clausen Fagales Betulaceae
red alder Alnus rubra Bong. Fagales Betulaceae
hazel alder Alnus serrulata (Ait.) Willd. Fagales Betulaceae
alder Alnus spp. P. Mill. Fagales Betulaceae
green alder Alnus viridis (Vill.) Lam. & DC. Fagales Betulaceae
Sitka alder Alnus viridis sinuata (Regel) A.&D. Love Fagales Betulaceae
mat chaff-flower Alternanthera caracasana Kunth Caryophyllales Amaranthaceae
alligatorweed Alternanthera philoxeroides (Mart.) Griseb. Caryophyllales Amaranthaceae
khakiweed Alternanthera pungens Kunth Caryophyllales Amaranthaceae
sessile joyweed Alternanthera sessilis (L.) R. Br. ex DC. Caryophyllales Amaranthaceae
yellow alyssum Alyssum alyssoides (L.) L Capparales Brassicaceae
tumble pigweed Amaranthus albus L Caryophyllales Amaranthaceae
prostrate pigweed Amaranthus blitoides S. Wats Caryophyllales Amaranthaceae
livid amaranth Amaranthus blitum L. Caryophyllales Amaranthaceae
low amaranth Amaranthus deflexus L. Caryophyllales Amaranthaceae
smooth pigweed Amaranthus hybridus L Caryophyllales Amaranthaceae
Palmer amaranth Amaranthus palmeri S. Wats. Caryophyllales Amaranthaceae
Powell amaranth Amaranthus powellii S. Wats Caryophyllales Amaranthaceae
redroot pigweed Amaranthus retroflexus L. Caryophyllales Amaranthaceae
common waterhemp Amaranthus rudis Sauer Caryophyllales Amaranthaceae
spiny amaranth Amaranthus spinosus L Caryophyllales Amaranthaceae
pigweed Amaranthus spp. L. Caryophyllales Amaranthaceae
tall waterhemp Amaranthus tuberculatus (Moq.) Sauer Caryophyllales Amaranthaceae
slender amaranth Amaranthus viridis L Caryophyllales Amaranthaceae
annual bursage Ambrosia acanthicarpa Hook Asterales Asteraceae
common ragweed Ambrosia artemisiifolia L. Asterales Asteraceae
annual ragweed Ambrosia artemisiifolia var. elatior (L.) Descourtils Asterales Asteraceae
lanceleaf ragweed Ambrosia bidentata Michx. Asterales Asteraceae
woollyleaf bursage Ambrosia grayi (A. Nels.) Shinners Asterales Asteraceae
western ragweed Ambrosia psilostachya DC Asterales Asteraceae
skeletonleaf bursage Ambrosia tomentosa Nutt. Asterales Asteraceae
giant ragweed Ambrosia trifida L. Asterales Asteraceae
serviceberry Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer Rosales Rosaceae
Saskatoon serviceberry Amelanchier alnifolia var. humptulipensis (G.N. Jones) C.L. Hitchc. Rosales Rosaceae
serviceberry Amelanchier arborea Michx. f. Rosales Rosaceae
Canadian serviceberry Amelanchier canadensis (L.) Medik. Rosales Rosaceae
Allegheny serviceberry Amelanchier laevis Wieg. Rosales Rosaceae
apple serviceberry Amelanchier x grandiflora Rehd. [arborea x laevis] Rosales Rosaceae
redstem Ammannia coccinea Rottb Myrtales Lythraceae
greater ammi Ammi majus L. Apiales Apiaceae
toothpick ammi Ammi visnaga (L.) Lam. Apiales Apiaceae
leadplant Amorpha canescens Pursh Fabales Fabaceae (Leguminosae)
indigobush Amorpha fruticosa L. Fabales Fabaceae (Leguminosae)
peppervine Ampelopsis arborea L Rhamnales Vitaceae
Amur peppervine Ampelopsis brevipedunculata (Maxim.) Trautv. Rhamnales Vitaceae
heartleaf peppervine Ampelopsis cordata Michx. Rhamnales Vitaceae
little amphianthus Amphianthus pusillus Torr. Scrophulariales Scrophulariaceae
Eastwood's fiddleneck Amsinckia eastwoodiae J.F. Macbr. Lamiales Boraginaceae
tarweed fiddleneck Amsinckia lycopsoides Lehm. Lamiales Boraginaceae
common fiddleneck Amsinckia menziesii var. intermedia (Fisch. & C.A. Mey.) Ganders Lamiales Boraginaceae
western fiddleneck Amsinckia tessellata A. Gray Lamiales Boraginaceae
Texas bluestar Amsonia ciliata var. texana (A. Gray) J.M. Coult. Gentianales Apocynaceae
eastern bluestar Amsonia tabernaemontana Walt. Gentianales Apocynaceae
cashew Anacardium occidentale L. Sapindales Anacardiaceae
scarlet pimpernel Anagallis arvensis L Primulales Primulaceae
flaxleaf pimpernel Anagallis monelli L. Primulales Primulaceae
pearly everlasting Anaphalis margaritacea (L.) Benth. Asterales Asteraceae
small bugloss Anchusa arvensis (L.) Bieb Lamiales Boraginaceae
common bugloss Anchusa officinalis L. Lamiales Boraginaceae
bog rosemary Andromeda polifolia L. Ericales Ericaceae
anemone Anemone alpina L. Ranunculales Ranunculaceae
round-lobe hepatica Anemone americana (DC.) H. Hara Ranunculales Ranunculaceae
Greek thimbleweed Anemone blanda Schott & Kotschy Ranunculales Ranunculaceae
Canadian anemone Anemone canadensis L. Ranunculales Ranunculaceae
Pacific anemone Anemone multifida Poir. Ranunculales Ranunculaceae
narcissus anemone Anemone narcissiflora L. Ranunculales Ranunculaceae
European thimbleweed Anemone nemorosa L. Ranunculales Ranunculaceae
smallflowered anemone Anemone parviflora Michx. Ranunculales Ranunculaceae
Piper's anemone Anemone piperi Britt. ex Rydb. Ranunculales Ranunculaceae
wood anemone Anemone quinquefolia L. Ranunculales Ranunculaceae
grape-leaf anemone Anemone tomentosa (Maxim.) C. P'ei Ranunculales Ranunculaceae
tall thimbleweed Anemone virginiana L. Ranunculales Ranunculaceae
Japanese anemone Anemone x hybrida Paxton [hupehensis × vitifolia] Ranunculales Ranunculaceae
dill Anethum graveolens L. Apiales Apiaceae
giant angelica Angelica ampla A. Nels Apiales Apiaceae
Gray's angelica Angelica grayi (Coult. & Rose) Coult. & Rose Apiales Apiaceae
cherimoya Annona cherimola Mill. Magnoliales Annonaceae
soursop Annona muricata L. Magnoliales Annonaceae
sugar apple Annona squamosa L. Magnoliales Annonaceae
spurred anoda Anoda cristata (L.) Schlecht Malvales Malvaceae
Texas madeiravine Anredera vesicaria Lam.) Gaertn. F Caryophyllales Basellaceae
pearly pussytoes Antennaria anaphaloides Rydb. Asterales Asteraceae
small-leaf pussytoes Antennaria parvifolia Nutt. Asterales Asteraceae
rosy pussytoes Antennaria rosea Greene Asterales Asteraceae
umber pussytoes Antennaria umbrinella Rydb. Asterales Asteraceae
corn chamomile Anthemis arvensis L. Asterales Asteraceae
stinking chamomile Anthemis cotula L Asterales Asteraceae
yellow chamomile Anthemis tinctoria L. Asterales Asteraceae
bur chervil Anthriscus caucalis M. Bieb. Apiales Apiaceae
chervil Anthriscus cerefolium (L.) Hoffm. Apiales Apiaceae
wild chervil Anthriscus sylvestris (L.) Hoffmann Apiales Apiaceae
common kidneyvetch Anthyllis vulneraria L. Fabales Fabaceae (Leguminosae)
coral vine Antigonon leptopus Hook. & Arn. Polygonales Polygonaceae
snapdragon Antirrhinum majus L. Plantaginales Plantaginaceae
celery Apium spp. L. Apiales Apiaceae
spreading dogbane Apocynum androsaemifolium L. Gentianales Apocynaceae
hemp dogbane Apocynum cannabinum L. Gentianales Apocynaceae
Dailey's columbine Aquilegia caerulea daileyae (James) Eastw. Ranunculales Ranunculaceae
Colorado blue columbine Aquilegia caerulea James Ranunculales Ranunculaceae
red columbine Aquilegia canadensis L. Ranunculales Ranunculaceae
western red columbine Aquilegia elegantula Greene Ranunculales Ranunculaceae
western columbine Aquilegia formosa Fisch. ex DC. Ranunculales Ranunculaceae
columbine Aquilegia spp. L. Ranunculales Ranunculaceae
European columbine Aquilegia vulgaris L. Ranunculales Ranunculaceae
mouse-ear cress Arabidopsis thaliana (L.) Heynh Capparales Brassicaceae
nodding rockcress Arabis demissa Greene Capparales Brassicaceae
Drummond's rockcress Arabis drummondii Gray Capparales Brassicaceae
Fendler's rockcress Arabis fendleri (S. Wats.) Greene Capparales Brassicaceae
tower-mustard Arabis glabra (L.) Bernh. Capparales Brassicaceae
hairy rockcress Arabis hirsuta (L.) Scop. Capparales Brassicaceae
Lemmon's rockcress Arabis lemmonii S. Wats. Capparales Brassicaceae
desert rockcress Arabis lignifera A. Nels. Capparales Brassicaceae
Gunnison County rockcress Arabis pallidifolia Rollins Capparales Brassicaceae
peanut Arachis hypogaea L. Fabales Fabaceae (Leguminosae)
Japanese angelica tree Aralia elata (Miq.) Seem Apiales Araliaceae
wild sarsaparilla Aralia nudicaulis L. Apiales Araliaceae
devil's walkingstick Aralia spinosa L. Apiales Araliaceae
white bladderflower Araujia sericifera Brot. Gentianales Asclepiadaceae
Greek strawberry tree Arbutus andrachne L. Ericales Ericaceae
white fir dwarf mistletoe Arceuthobium abietinum f.sp. concoloris Engelm. ex Munz Santalales Viscaceae
red fir dwarf mistletoe Arceuthobium abietinum f.sp. magnificae Engelm. ex Munz Santalales Viscaceae
fir dwarf mistletoe Arceuthobium abietinum Engelmann ex Munz Santalales Viscaceae
American dwarf mistletoe Arceuthobium americanum Nutt. ex Engelm. Santalales Viscaceae
western dwarf mistletoe Arceuthobium campylopodum Engelm. Santalales Viscaceae
limber pine dwarf mistletoe Arceuthobium cyanocarpum (A. Nels. ex Rydb.) A. Nels. Santalales Viscaceae
pinyon dwarf mistletoe Arceuthobium divaricatum Englem. Santalales Viscaceae
Douglas-fir dwarf mistletoe Arceuthobium douglasii Englem. Santalales Viscaceae
Durango dwarf mistletoe Arceuthobium durangense ( Hawksw. & Wiens ) Hawksw. & Wiens Santalales Viscaceae
Chichuahua Pine Dwarf Mistletoe Arceuthobium gillii Hawksworth & Wiens Santalales Viscaceae
larch dwarf mistletoe Arceuthobium laricis (Piper) St. John Santalales Viscaceae
Digger pine dwarf mistletoe Arceuthobium occidentale Engelmann Santalales Viscaceae
Juniper dwarf mistletoe Arceuthobium oxycedri Bieb. Santalales Viscaceae
eastern dwarf mistletoe Arceuthobium pusillum Peck Santalales Viscaceae
dwarf mistletoes Arceuthobium spp. Bieb. Santalales Viscaceae
hemlock dwarf mistletoe Arceuthobium tsugense (Rosendahl) G.N. Jones Santalales Viscaceae
ponderosa pine dwarf mistletoe Arceuthobium vaginatum (Willd.) J. Presl Santalales Viscaceae
pineland dwarf mistletoe Arceuthobium vaginatum ssp. cryptopodum (Engelm.) Hawksw. & Wiens Santalales Viscaceae
great burdock Arctium lappa L. Asterales Asteraceae
common burdock Arctium minus Bernh. Asterales Asteraceae
bearberry Arctostaphylos uva-ursi (L.) Spreng. Ericales Ericaceae
capeweed Arctotheca calendula (L.) Levyns Asterales Asteraceae
coral ardisia Ardisia crenata Sims Primulales Myrsinaceae
shoebutton ardisia Ardisia elliptica Thunb Primulales Myrsinaceae
China-shrub Ardisia solanacea Roxb. Primulales Myrsinaceae
marlberry Ardisia spp. Sw. Primulales Myrsinaceae
prickly sandwort Arenaria aculeata S. Watson Caryophyllales Caryophyllaceae
Fendler's sandwort Arenaria fendleri Gray Caryophyllales Caryophyllaceae
Hooker's sandwort Arenaria hookeri Nutt Caryophyllales Caryophyllaceae
spreading sandwort Arenaria lanuginosa (Michx.) Rohrb. Caryophyllales Caryophyllaceae
thymeleaf sandwort Arenaria serpyllifolia L. Caryophyllales Caryophyllaceae
bluestem pricklepoppy Argemone albiflora Hornem. Papaverales Papaveraceae
Mexican pricklepoppy Argemone mexicana L Papaverales Papaveraceae
flatbud pricklypoppy Argemone munita Dur. & Hilg. Papaverales Papaveraceae
annual pricklepoppy Argemone polyanthemos (Fedde) G.B. Ownbey Papaverales Papaveraceae
pricklypoppy Argemone spp. L. Papaverales Papaveraceae
silverweed cinquefoil Argentina anserina (L.) Rydb. Rosales Rosaceae
kau silversword Argyroxiphium kauense (Rock & Neal) O. Deg. & I. Deg. Asterales Asteraceae
birthwort Aristolochia clematitis L. Aristolochiales Aristolochiaceae
pipevine Aristolochia macrophylla Lam. Aristolochiales Aristolochiaceae
thrift seapink Armeria maritima (P. Mill.) Willd. Plumbaginales Plumbaginaceae
narrowleaf arnica Arnica angustifolia Vahl Asterales Asteraceae
Chamisso arnica Arnica chamissonis Less. Asterales Asteraceae
heartleaf arnica Arnica cordifolia Hook. Asterales Asteraceae
broadleaf arnica Arnica latifolia Bong. Asterales Asteraceae
hairy arnica Arnica mollis Hook. Asterales Asteraceae
Parry's arnica Arnica parryi Gray Asterales Asteraceae
rayless arnica Arnica x diversifolia Greene (pro sp.) [amplexicaulis or mollis × cordifolia or latifolia] Asterales Asteraceae
absinth wormwood Artemisia absinthium L. Asterales Asteraceae
annual wormwood Artemisia annua L. Asterales Asteraceae
little sagebrush Artemisia arbuscula Nutt. Asterales Asteraceae
Oahu wormwood Artemisia australis Less. Asterales Asteraceae
biennial wormwood Artemisia biennis Willd Asterales Asteraceae
common sagewort Artemisia campestris L Asterales Asteraceae
California mugwort Artemisia douglasiana Besser Asterales Asteraceae
tarragon Artemisia dracunculus L. Asterales Asteraceae
sand sagebrush Artemisia filifolia Torr. Asterales Asteraceae
ragweed sagebrush Artemisia franserioides Greene Asterales Asteraceae
prairie sagewort Artemisia frigida Willd Asterales Asteraceae
Louisiana wormwood Artemisia ludoviciana Nutt. Asterales Asteraceae
Michaux's wormwood Artemisia michauxiana Bess. Asterales Asteraceae
scabland sagebrush Artemisia rigida (Nutt.) Gray Asterales Asteraceae
satiny wormwood Artemisia schmidtiana Maxim. Asterales Asteraceae
alpine sagebrush Artemisia scopulorum Gray Asterales Asteraceae
big sagebrush Artemisia tridentata Nutt Asterales Asteraceae
mountain big sagebrush Artemisia tridentata ssp. vaseyana (Rydb.) Beetle Asterales Asteraceae
mugwort Artemisia vulgaris L. Asterales Asteraceae
breadfruit Artocarpus altilis (Parkinson) Fosberg Urticales Moraceae
Canadian wildginger Asarum canadense L. Aristolochiales Aristolochiaceae
British Columbia wildginger Asarum caudatum Lindl. Aristolochiales Aristolochiaceae
spider milkweed Asclepias asperula (Dcne.) Woods Gentianales Asclepiadaceae
Mexican whorled milkweed Asclepias fascicularis Dcne. Gentianales Asclepiadaceae
swamp milkweed Asclepias incarnata L. Gentianales Asclepiadaceae
broadleaf milkweed Asclepias latifolia (Torr.) Raf. Gentianales Asclepiadaceae
plains milkweed Asclepias pumila (A. Gray) Vail Gentianales Asclepiadaceae
showy milkweed Asclepias speciosa Torr Gentianales Asclepiadaceae
milkweed Asclepias spp. L. Gentianales Asclepiadaceae
western whorled milkweed Asclepias subverticillata (Gray) Vail Gentianales Asclepiadaceae
common milkweed Asclepias syriaca L. Gentianales Asclepiadaceae
butterfly milkweed Asclepias tuberosa L. Gentianales Asclepiadaceae
redring milkweed Asclepias variegata L. Gentianales Asclepiadaceae
eastern whorled milkweed Asclepias verticillata L. Gentianales Asclepiadaceae
green milkweed Asclepias viridiflora Raf. Gentianales Asclepiadaceae
green antelopehorn Asclepias viridis Walt. Gentianales Asclepiadaceae
slimleaf pawpaw Asimina angustifolia Raf. Magnoliales Annonaceae
smallflower pawpaw Asimina parviflora (Michx.) Dunal Magnoliales Annonaceae
pawpaw Asimina triloba (L.) Dunal Magnoliales Annonaceae
catchweed Asperugo procumbens L. Lamiales Boraginaceae
aster Aster spp. L. Asterales Asteraceae
estrellita Asteranthera ovata Hanst. Scrophulariales Gesneriaceae
tufted milkvetch Astragalus adsurgens Jacq. Fabales Fabaceae (Leguminosae)
alpine milkvetch Astragalus alpinus L. Fabales Fabaceae (Leguminosae)
twogrooved milkvetch Astragalus bisulcatus (Hook.) Gray Fabales Fabaceae (Leguminosae)
Canada milkvetch Astragalus canadensis L. Fabales Fabaceae (Leguminosae)
Drummond's milkvetch Astragalus drummondii Dougl. ex Hook. Fabales Fabaceae (Leguminosae)
Hall's milkvetch Astragalus hallii Gray Fabales Fabaceae (Leguminosae)
spiny milkvetch Astragalus kentrophyta A. Gray Fabales Fabaceae (Leguminosae)
timber milkvetch Astragalus miser Dougl. Fabales Fabaceae (Leguminosae)
Leadville milkvetch Astragalus molybdenus Barneby Fabales Fabaceae (Leguminosae)
Parry's milkvetch Astragalus parryi Gray Fabales Fabaceae (Leguminosae)
Patterson's milkvetch Astragalus pattersonii Gray Fabales Fabaceae (Leguminosae)
woollypod milkvetch Astragalus purshii Dougl. ex Hook. Fabales Fabaceae (Leguminosae)
cream milkvetch Astragalus racemosus Pursh Fabales Fabaceae (Leguminosae)
Robbins' milkvetch Astragalus robbinsii (Oakes) A. Gray Fabales Fabaceae (Leguminosae)
milkvetch Astragalus spp. L. Fabales Fabaceae (Leguminosae)
Utah milkvetch Astragalus utahensis (Torr.) Torr. & Gray Fabales Fabaceae (Leguminosae)
fourwing saltbush Atriplex canescens (Pursh) Nutt. Caryophyllales Chenopodiaceae
shadscale Atriplex confertifolia (Torr. & Frém.) S. Wats. Caryophyllales Chenopodiaceae
saltbush Atriplex fera L. Bunge Caryophyllales Chenopodiaceae
garden orach Atriplex hortensis L. Caryophyllales Chenopodiaceae
twoscale saltbush Atriplex micrantha Ledeb. Caryophyllales Chenopodiaceae
halberdleaf orach Atriplex patula L. Caryophyllales Chenopodiaceae
triangle orach Atriplex prostrata Bouchér ex DC. Caryophyllales Chenopodiaceae
red orach Atriplex rosea L. Caryophyllales Chenopodiaceae
Australian saltbush Atriplex semibaccata R. Br. Caryophyllales Chenopodiaceae
saltbush Atriplex spp. L. Caryophyllales Chenopodiaceae
peregrine saltbush Atriplex suberecta I. Verd. Caryophyllales Chenopodiaceae
Wolf's saltweed Atriplex wolfii S. Wats. Caryophyllales Chenopodiaceae
belladonna Atropa bella-donna L. Solanales Solanaceae
fernleaf yellow false foxglove Aureolaria pedicularia (L.) Raf. Scrophulariales Scrophulariaceae
downy yellow false foxglove Aureolaria virginica (L.) Pennell Scrophulariales Scrophulariaceae
star fruit Averrhoa carambola L. Geraniales Oxalidaceae
neem Azadirachta indica Adr. Juss. Sapindales Meliaceae
eastern baccharis Baccharis halimifolia L. Asterales Asteraceae
seepwillow Baccharis salicifolia (Ruiz & Pav.) Pers. Asterales Asteraceae
ragleaf bahia Bahia dissecta (Gray) Britt. Asterales Asteraceae
black horehound Ballota nigra L. Lamiales Lamiaceae
Hooker's balsamroot Balsamorhiza hookeri Nutt. Asterales Asteraceae
arrowleaf balsamroot Balsamorhiza sagittata (Pursh) Nutt. Asterales Asteraceae
serrate balsamroot Balsamorhiza serrata . Nelson & J.F. Macbr. Asterales Asteraceae
scarlet banksia Banksia coccinea R.Br. Proteales Proteaceae
yellow lantern banksia Banksia lemanniana Meisn. Proteales Proteaceae
southern plains banksia Banksia media R.Br. Proteales Proteaceae
swamp banksia Banksia robur Blüte Proteales Proteaceae
saw banksia Banksia serrata Lf. Heimat Proteales Proteaceae
showy banksia Banksia speciosa R.Br. Proteales Proteaceae
pine banksia Banksia tricuspis Meisn. Proteales Proteaceae
largeleaf wild indigo Baptisia alba var. macrophylla (Larisey) Isely Fabales Fabaceae (Leguminosae)
cobwebby wild indigo Baptisia arachnifera Duncan Fabales Fabaceae (Leguminosae)
blue wild indigo Baptisia australis (L.) R. Br. ex Ait. f. Fabales Fabaceae (Leguminosae)
longbract wild indigo Baptisia bracteata Muhl. ex Elliot Fabales Fabaceae (Leguminosae)
gopherweed Baptisia lanceolata (Walt.) Ell. Fabales Fabaceae (Leguminosae)
American yellow rocket Barbarea orthoceras Ledeb Capparales Brassicaceae
early wintercress Barbarea verna (Mill.) Asch. Capparales Brassicaceae
yellow rocket Barbarea vulgaris Ait. f. Capparales Brassicaceae
fivehook bassia Bassia hyssopifolia (Pallas) Kuntz Caryophyllales Chenopodiaceae
Mexican fireweed Bassia scoparia (L.) A.J. Scott Caryophyllales Chenopodiaceae
turtleweed Batis maritima L. Batales Bataceae
tarflower Befaria racemosa Vent. Ericales Ericaceae
begonia Begonia spp. L. Violales Begoniaceae
bellardia Bellardia trixago (L.) All Scrophulariales Scrophulariaceae
English daisy Bellis perennis L. Asterales Asteraceae
Darwin's berberis Berberis darwinii Hook. Ranunculales Berberidaceae
wintergreen barberry Berberis julianae C.K. Schneid. Ranunculales Berberidaceae
Korean barberry Berberis koreana Palib. Ranunculales Berberidaceae
barberry Berberis spp. L. Ranunculales Berberidaceae
Japanese barberry Berberis thunbergii DC. Ranunculales Berberidaceae
European barberry Berberis vulgaris L Ranunculales Berberidaceae
Alabama supplejack Berchemia scandens (Hill) K. Rhamnales Rhamnaceae
hoary alyssum Berteroa incana (L.) DC Capparales Brassicaceae
cutleaf waterparsnip Berula erecta (Huds.) Coville Apiales Apiaceae
alpine besseya Besseya alpina (Gray) Rydb. Scrophulariales Scrophulariaceae
White River coraldrops Besseya plantaginea (James) Rydb. Scrophulariales Scrophulariaceae
common beet Beta vulgaris L. Caryophyllales Chenopodiaceae
yellow birch Betula alleghaniensis Britt. Fagales Betulaceae
Dahurian birch Betula dahurica Pallas Fagales Betulaceae
water birch Betula fontinalis Hook. Fagales Betulaceae
resin birch Betula glandulosa Michx. Fagales Betulaceae
cherry birch Betula lenta L. Fagales Betulaceae
dwarf birch Betula nana L. Fagales Betulaceae
river birch Betula nigra L. Fagales Betulaceae
water birch Betula occidentalis Hook. Fagales Betulaceae
paper birch Betula papyrifera Marsh. Fagales Betulaceae
European white birch Betula pendula Roth Fagales Betulaceae
Whitespire Betula platyphylla var. japonica (Miq.) H. Hara Fagales Betulaceae
downy birch Betula pubescens Ehrh. Fagales Betulaceae
birch Betula spp. L. Fagales Betulaceae
romerillo Bidens alba (L.) DC Asterales Asteraceae
bearded beggarticks Bidens aristosa (Michx.) Britt. Asterales Asteraceae
spanishneedles Bidens bipinnata L. Asterales Asteraceae
nodding beggarticks Bidens cernua L Asterales Asteraceae
devils beggarticks Bidens frondosa L. Asterales Asteraceae
burmarigold Bidens laevis (L.) Britton, Sterns & Poggenb. Asterales Asteraceae
hairy beggarticks Bidens pilosa L. Asterales Asteraceae
bur beggarticks Bidens tripartita L. Asterales Asteraceae
crossvine Bignonia capreolata L. Scrophulariales Bignoniaceae
Javanese bishopwood Bischofia javanica Blume Euphorbiales Euphorbiaceae
horsemint Blephilia ciliata (L.) Benth. Lamiales Lamiaceae
'ahakea lau nui Bobea elatior Gaudich. Rubiales Rubiaceae
smallspike false nettle Boehmeria cylindrica (L.) Sw. Urticales Urticaceae
red spiderling Boerhavia diffusa L. Caryophyllales Nyctaginaceae
anena Boerhavia repens L. Caryophyllales Nyctaginaceae
bombax Bombax spp. L. Malvales Bombacaceae
Hawai'i lady's nightcap Bonamia menziesii A. Gray Solanales Convolvulaceae
common borage Borago officinalis L. Lamiales Boraginaceae
bougainvillea Bougainvillea spp. Comm. ex Juss. Caryophyllales Nyctaginaceae
hoary bowlesia Bowlesia incana Ruiz & Pavón Apiales Apiaceae
watershield Brasenia schreberi J.F. Gmel. Nymphaeales Cabombaceae
Indian mustard Brassica juncea (L.) Czern Capparales Brassicaceae
rapeseed Brassica napus L. Capparales Brassicaceae
canola Brassica napus var. napus L. Capparales Brassicaceae
black mustard Brassica nigra (L.) W.D.J. Koch Capparales Brassicaceae
cabbage collards Brassica oleracea L. Capparales Brassicaceae
cauliflower Brassica oleracea var. botrytis L. Capparales Brassicaceae
brussels sprouts Brassica oleracea var. gemmifera DC. Capparales Brassicaceae
kohlrabi Brassica oleracea var. gongylodes L. Capparales Brassicaceae
broccoli Brassica oleracea var. italica Plenck Capparales Brassicaceae
cabbage Brassica oleracea var. oleracea L. Capparales Brassicaceae
chinese cabbage Brassica pekinensis (Lour.) Rupr. Capparales Brassicaceae
birdsrape mustard Brassica rapa L. Capparales Brassicaceae
bok-choy Brassica rapa ssp. chinensis (L.) Hanelt Capparales Brassicaceae
turnip Brassica rapa ssp. rapa L. Capparales Brassicaceae
field mustard Brassica rapa var. rapa L. Capparales Brassicaceae
mustard Brassica spp. Capparales Brassicaceae
African mustard Brassica tournefortii Gouan Capparales Brassicaceae
tasselflower brickellbush Brickellia grandiflora (Hook.) Nutt. Asterales Asteraceae
cabbage on a stick Brighamia insignis A. Gray Campanulales Campanulaceae
paper-mulberry Broussonetia papyrifera (L.) L'Hér. ex Vent. Urticales Moraceae
redvine Brunnichia ovata (Walt.) Shinners Polygonales Polygonaceae
white bryony Bryonia alba L. Violales Cucurbitaceae
dogtail Buddleja asiatica Lour. Scrophulariales Buddlejaceae
butterflybush Buddleja davidii Franch. Scrophulariales Buddlejaceae
smokebush Buddleja madagascariensis Lam. Scrophulariales Buddlejaceae
butterflybush Buddleja spp. L. Scrophulariales Buddlejaceae
corn gromwell Buglossoides arvensis (L.) I.M. Johnston Lamiales Boraginaceae
crested bunias Bunias erucago L. Capparales Brassicaceae
Hill mustard Bunias orientalis L. Capparales Brassicaceae
gumbo limbo Bursera simaruba (L.) Sarg. Sapindales Burseraceae
fanwort Cabomba caroliniana L Nymphaeales Cabombaceae
watapana Caesalpinia coriara L. Fabales Fabaceae (Leguminosae)
divi divi Caesalpinia coriaria (Jacq.) Willd. Fabales Fabaceae (Leguminosae)
shoofly Caesalpinia decapetala (Roth) Alston Fabales Fabaceae (Leguminosae)
paradise poinciana Caesalpinia gilliesii (Wall. ex Hook.) Wall. ex D. Dietr. Fabales Fabaceae (Leguminosae)
pride-of-Barbados Caesalpinia pulcherrima (L.) Sw. Fabales Fabaceae (Leguminosae)
redmaids Calandrinia ciliata (Ruiz & Pavón) DC Caryophyllales Portulacaceae
lady's slipper Calceolaria tenella Poepp. & Endl Scrophulariales Scrophulariaceae
sand lady's slipper Calceolaria uniflora Lam. Scrophulariales Scrophulariaceae
field marigold Calendula arvensis L. Asterales Asteraceae
tabardillo Calliandra californica Benth. Fabales Fabaceae (Leguminosae)
American beautyberry Callicarpa americana L. Lamiales Verbenaceae
beautyberry Callicarpa spp. Lamiales Verbenaceae
purple poppymallow Callirhoe involucrata (Torr. & Gray) Gray Malvales Malvaceae
stiff bottlebrush Callistemon rigidus R. Br. Myrtales Myrtaceae
scarlet bottlebrush Callistemon rugulosus (Dum.Cours.) Court. Myrtales Myrtaceae
bottlebrush Callistemon spp. R.Br. Myrtales Myrtaceae
waterstarwort Callitriche palustris L. Callitrichales Callitrichaceae
European waterstarwort Callitriche stagnalis Scop. Callitrichales Callitrichaceae
heather Calluna vulgaris (L.) Hull Ericales Ericaceae
Alexandrian laurel Calophyllum inophyllum L. Theales Clusiaceae
giant milkweed Calotropis gigantea (L.) Ait. F. Gentianales Asclepiadaceae
roostertree Calotropis procera (Ait.) Ait. F. Gentianales Asclepiadaceae
white marsh marigold Caltha leptosepala DC. Ranunculales Ranunculaceae
white marsh marigold Caltha leptosepala ssp. leptosepala var. leptosepala D.C. Ranunculales Ranunculaceae
yellow marsh marigold Caltha palustris L. Ranunculales Ranunculaceae
eastern sweetshrub Calycanthus floridus L. Laurales Calycanthaceae
sprawling horseweed Calyptocarpus vialis Less. Asterales Asteraceae
Japanese bindweed Calystegia hederacea Wall. Solanales Convolvulaceae
hedge bindweed Calystegia sepium (L.) R. Br Solanales Convolvulaceae
smallseed falseflax Camelina microcarpa DC. Capparales Brassicaceae
tea Camellia sinensis (L.) O. Kuntze Theales Theaceae
camellia Camellia spp. L. Theales Theaceae
tussock bellflower Campanula carpatica Jacq. Campanulales Campanulaceae
clustered bellflower Campanula glomerata L. Campanulales Campanulaceae
Parry's bellflower Campanula parryi Gray Campanulales Campanulaceae
spotted bellflower Campanula punctata Lam. Campanulales Campanulaceae
creeping bellflower Campanula rapunculoides L. Campanulales Campanulaceae
harebell Campanula rotundifolia L. Campanulales Campanulaceae
arctic bellflower Campanula uniflora L. Campanulales Campanulaceae
American bellflower Campanulastrum americanum (L.) Small Campanulales Campanulaceae
trumpetcreeper Campsis radicans (L.) Seem. ex Bureau Scrophulariales Bignoniaceae
marijuana Cannabis sativa L Urticales Cannabaceae
capparis Capparis odoratissima Jacq. Capparales Capparaceae
shepherd's-purse Capsella bursa-pastoris (L.) Medik. Capparales Brassicaceae
sweet pepper Capsicum annuum L. Solanales Solanaceae
habanero pepper Capsicum chinense Jacq. Solanales Solanaceae
pepper Capsicum spp. L. Solanales Solanaceae
Siberian peashrub Caragana arborescens Lam. Fabales Fabaceae (Leguminosae)
slender toothwort Cardamine angustata O.E. Schulz Capparales Brassicaceae
cutleaf toothwort Cardamine concatenata (Michx.) Sw. Capparales Brassicaceae
heartleaf bittercress Cardamine cordifolia Gray Capparales Brassicaceae
woodland bittercress Cardamine flexuosa With. Capparales Brassicaceae
hairy bittercress Cardamine hirsuta L Capparales Brassicaceae
narrowleaf bittercress Cardamine impatiens L. Capparales Brassicaceae
little western bittercress Cardamine oligosperma Nutt. Capparales Brassicaceae
smallflowered bittercress Cardamine parviflora L Capparales Brassicaceae
Pennsylvania bittercress Cardamine pensylvanica Muhl. ex Willd. Capparales Brassicaceae
cuckoo bittercress Cardamine pratensis L. Capparales Brassicaceae
bittercress Cardamine spp. L. Capparales Brassicaceae
lens-podded whitetop Cardaria chalapensis (L.) Hand.-Maz Capparales Brassicaceae
lenspod whitetop Cardaria chalepensis (L.) Hand.-Maz. Capparales Brassicaceae
hoary cress Cardaria draba (L.) Desv Capparales Brassicaceae
hairy whitetop Cardaria pubescens (C.A. Mey.) Capparales Brassicaceae
balloonvine Cardiospermum halicacabum L. Sapindales Sapindaceae
spiny plumeless thistle Carduus acanthoides L. Asterales Asteraceae
musk thistle Carduus nutans L. Asterales Asteraceae
Italian plumeless thistle Carduus pycnocephalus L. Asterales Asteraceae
slenderflower thistle Carduus tenuiflorus W. Curtis Asterales Asteraceae
papaya Carica papaya L. Violales Caricaceae
saguaro Carnegiea gigantea (Engelm.) Britton & Rose Caryophyllales Cactaceae
vanillaleaf Carphephorus odoratissimus (J.F. Gmel.) Herbert Asterales Asteraceae
hairy chaffhead Carphephorus paniculatus (J.F. Gmel.) Herbert Asterales Asteraceae
European hornbeam Carpinus betulus L. Fagales Betulaceae
American hornbeam Carpinus caroliniana Walt. Fagales Betulaceae
Japanese hornbeam Carpinus japonica Blume Fagales Betulaceae
Oriental hornbeam Carpinus orientalis Mill. Fagales Betulaceae
sea fig Carpobrotus chilensis (Molina) N.E. Br. Caryophyllales Aizoaceae
hottentot fig Carpobrotus edulis (L.) N.E. Br Caryophyllales Aizoaceae
carpobrotus Carpobrotus spp. Caryophyllales Aizoaceae
woolly distaff thistle Carthamus lanatus L. Asterales Asteraceae
wild safflower Carthamus oxyacanthus M. Bieberstein Asterales Asteraceae
safflower Carthamus tinctorius L. Asterales Asteraceae
common caraway Carum carvi L. Apiales Apiaceae
carvalhoa Carvalhoa campanulata Gentianales Apocynaceae
water hickory Carya aquatica (Michx. f.) Nutt. Juglandales Juglandaceae
bitternut hickory Carya cordiformis (Wangenh.) K. Koch Juglandales Juglandaceae
scrub hickory Carya floridana Sarg. Juglandales Juglandaceae
pignut hickory Carya glabra (P. Mill.) Sweet Juglandales Juglandaceae
pecan Carya illinoinensis (Wangenh.) K. Koch Juglandales Juglandaceae
shellbark hickory Carya laciniosa (Michx. f.) G. Don Juglandales Juglandaceae
shagbark hickory Carya ovata (P. Mill.) K. Koch Juglandales Juglandaceae
mockernut hickory Carya tomentosa (L.) Nutt. ex Ell. Juglandales Juglandaceae
blue-mist shrub Caryopteris x clandonensis hort. ex Rehd. [incana × mongholica] Lamiales Lamiaceae
white sapote Casimiroa edulis Llave & Lex. Sapindales Rutaceae
devil's gut Cassytha filiformis L. Laurales Lauraceae
American chestnut Castanea dentata (Marsh.) Borkh. Fagales Fagaceae
Chinese chestnut Castanea mollissima Blume Fagales Fagaceae
chinkapin Castanea pumila (L.) P. Mill. Fagales Fagaceae
European chestnut Castanea sativa P. Mill. Fagales Fagaceae
desert paintbrush Castilleja angustifolia dubia A. Nels. Scrophulariales Scrophulariaceae
wavyleaf Indian paintbrush Castilleja applegatei Fern. Scrophulariales Scrophulariaceae
field Indian paintbrush Castilleja arvensis Cham. & Schlecht Scrophulariales Scrophulariaceae
scarlet Indian paintbrush Castilleja coccinea (L.) Spreng. Scrophulariales Scrophulariaceae
Hayden's Indian paintbrush Castilleja haydenii (Gray) Cockerell Scrophulariales Scrophulariaceae
harsh Indian paintbrush Castilleja hispida Benth. Scrophulariales Scrophulariaceae
wholeleaf Indian paintbrush Castilleja integra Gray Scrophulariales Scrophulariaceae
Wyoming Indian paintbrush Castilleja linariifolia Benth. Scrophulariales Scrophulariaceae
giant red Indian paintbrush Castilleja miniata Dougl. ex Hook. Scrophulariales Scrophulariaceae
western Indian paintbrush Castilleja occidentalis Torr. Scrophulariales Scrophulariaceae
Raup's Indian paintbrush Castilleja raupii Pennell Scrophulariales Scrophulariaceae
splitleaf Indian paintbrush Castilleja rhexiifolia Rydb. Scrophulariales Scrophulariaceae
Indian paintbrush Castilleja spp. Mutis ex L.f. Scrophulariales Scrophulariaceae
sulphur Indian paintbrush Castilleja sulphurea Rydb. Scrophulariales Scrophulariaceae
Australian-pine Casuarina equisetifolia L. Casuarinales Casuarinaceae
gray sheoak Casuarina glauca Sieb. ex Spreng Casuarinales Casuarinaceae
belah Casuarina lepidophloia F. Muell Casuarinales Casuarinaceae
southern catalpa Catalpa bignonioides Walt. Scrophulariales Bignoniaceae
northern catalpa Catalpa speciosa (Warder) Warder ex Engelm. Scrophulariales Bignoniaceae
catalpa Catalpa spp. Scop. Scrophulariales Bignoniaceae
khat Catha edulis (Vahl) Forssk. ex Endl. Celastrales Celastraceae
Madagascar periwinkle Catharanthus roseus (L.) G. Don Gentianales Apocynaceae
carrot bur parsley Caucalis platycarpos L. Apiales Apiaceae
blue cohosh Caulophyllum thalictroides (L.) Michx. Ranunculales Berberidaceae
bushkiller Cayratia japonica (Thunb.) Gagnepain Rhamnales Vitaceae
New Jersey tea Ceanothus americanus L. Rhamnales Rhamnaceae
Fendler's ceanothus Ceanothus fendleri Gray Rhamnales Rhamnaceae
prostrate ceanothus Ceanothus prostratus Benth. Rhamnales Rhamnaceae
snowbrush ceanothus Ceanothus velutinus Dougl. ex Hook. Rhamnales Rhamnaceae
oriental bittersweet Celastrus orbiculatus Thunb. Celastrales Celastraceae
American bittersweet Celastrus scandens L. Celastrales Celastraceae
bittersweets Celastrus spp. L. Celastrales Celastraceae
Celosia Celosia spp. L. Caryophyllales Amaranthaceae
Mediterrean hackberry Celtis australis L. Urticales Ulmaceae
sugarberry Celtis laevigata Willd. Urticales Ulmaceae
netleaf hackberry Celtis laevigata var. reticulata (Torr.) L.D. Benson Urticales Ulmaceae
common hackberry Celtis occidentalis L. Urticales Ulmaceae
hackberry Celtis spp. L. Urticales Ulmaceae
dwarf hackberry Celtis tenuifolia Nutt. Urticales Ulmaceae
purple starthistle Centaurea calcitrapa L. Asterales Asteraceae
cornflower Centaurea cyanus L. Asterales Asteraceae
diffuse knapweed Centaurea diffusa Lam. Asterales Asteraceae
North African knapweed Centaurea diluta Ait. Asterales Asteraceae
brown knapweed Centaurea jacea L. Asterales Asteraceae
bighead knapweed Centaurea macrocephala Puschk. ex Willd. Asterales Asteraceae
Malta starthistle Centaurea melitensis L. Asterales Asteraceae
perennial cornflower Centaurea montana L. Asterales Asteraceae
black knapweed Centaurea nigra L. Asterales Asteraceae
Vochin knapweed Centaurea nigrescens Willd Asterales Asteraceae
Iberian knapweed Centaurea pullata L. Asterales Asteraceae
yellow starthistle Centaurea solstitialis L. Asterales Asteraceae
knapweeds Centaurea spp. L. Asterales Asteraceae
spotted knapweed Centaurea stoebe ssp. micranthos (Gugler) Hayek Asterales Asteraceae
sulphur knapweed Centaurea sulphurea Willd Asterales Asteraceae
squarrose knapweed Centaurea virgata Lam. Asterales Asteraceae
meadow knapweed Centaurea x moncktonii C. E. Britton Asterales Asteraceae
Asiatic pennywort Centella asiatica (L.) Urban Apiales Apiaceae
red valerian Centranthus ruber (L.) DC. Dipsacales Valerianaceae
pappose tarweed Centromadia parryi ssp. rudis (Greene) B.G. Baldw. Asterales Asteraceae
common tarweed Centromadia pungens ssp. pungens (Hook. & Arn.) Greene Asterales Asteraceae
spurred butterfly pea Centrosema virginianum (L.) Benth. Fabales Fabaceae (Leguminosae)
buttonbush Cephalanthus occidentalis L. Rubiales Rubiaceae
old-man cactus Cephalocereus senilis (Haw.) Pfeiff. Caryophyllales Cactaceae
field chickweed Cerastium arvense L. Caryophyllales Caryophyllaceae
field chickweed Cerastium arvense ssp. strictum (L.) Ugborogho Caryophyllales Caryophyllaceae
Bering chickweed Cerastium beeringianum Cham. & Schlecht. Caryophyllales Caryophyllaceae
common mouse-ear chickweed Cerastium fontanum Baumg. Caryophyllales Caryophyllaceae
big chickweed Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet Caryophyllales Caryophyllaceae
sticky chickweed Cerastium glomeratum Thuill. Caryophyllales Caryophyllaceae
mouse-ear chickweed Cerastium spp. L. Caryophyllales Caryophyllaceae
snow in summer Cerastium tomentosum L. Caryophyllales Caryophyllaceae
sand heath Ceratiola ericoides Michx. Ericales Empetraceae
bur buttercup Ceratocephala testiculata (Crantz) Bess. Ranunculales Ranunculaceae
St. John's bread Ceratonia siliqua L. Fabales Fabaceae (Leguminosae)
katsura tree Cercidiphyllum japonicum Siebold & Zucc. Hamamelidales Cercidiphyllaceae
white eastern redbud Cercis canadensis alba L. Fabales Fabaceae (Leguminosae)
eastern redbud Cercis canadensis Linnaeus Fabales Fabaceae (Leguminosae)
western redbud Cercis canadensis var. texensis (S. Watson) M. Hopkins Fabales Fabaceae (Leguminosae)
curl-leaf mountain mahogany Cercocarpus ledifolius Nutt. Rosales Rosaceae
alderleaf mountain mahogany Cercocarpus montanus Raf. Rosales Rosaceae
mountain mahagony Cercocarpus spp. Kunth Rosales Rosaceae
saguaro Cereus gigantea (Engelm.) Britton & Rose Caryophyllales Cactaceae
giant club cactus Cereus repandus (L.) Mill. Caryophyllales Cactaceae
Douglas' dustymaiden Chaenactis douglasii (Hook.) Hook. & Arn. Asterales Asteraceae
pincushion Chaenactis spp. DC. Asterales Asteraceae
Japanese floweringquince Chaenomeles japonica (Thunb.) Lindl. ex Spach Rosales Rosaceae
flowering quince Chaenomeles speciosa (Sweet) Nakai Rosales Rosaceae
dwarf snapdragon Chaenorhinum minus (L.) Lange Scrophulariales Scrophulariaceae
turnip-root chervil Chaerophyllum bulbosum L. Apiales Apiaceae
rough chervil Chaerophyllum temulum L. Apiales Apiaceae
partridgepea Chamaecrista fasciculata (Michx.) Greene Fabales Fabaceae (Leguminosae)
sleepingplant Chamaecrista fasciculata var. fasciculata (Michx.) Greene Fabales Fabaceae (Leguminosae)
sensitive partridgepea Chamaecrista nictitans (L.) Moench Fabales Fabaceae (Leguminosae)
leatherleaf Chamaedaphne calyculata (L.) Moench Ericales Ericaceae
bunchberry dogwood Chamaepericlymenum canadense L. Cornales Cornaceae
hairy five eyes Chamaesaracha sordida (Dunal) A. Gray Solanales Solanaceae
beach sandmat Chamaesyce degeneri (Sherff) Croizat & O. Deg. Euphorbiales Euphorbiaceae
ridgeseed spurge Chamaesyce glyptosperma (Engelm.) Euphorbiales Euphorbiaceae
prostrate spurge Chamaesyce humistrata (Engelm.) Small Euphorbiales Euphorbiaceae
graceful sandmat Chamaesyce hypericifolia (L.) Millsp. Euphorbiales Euphorbiaceae
hyssop spurge Chamaesyce hyssopifolia (L.) Small Euphorbiales Euphorbiaceae
spotted spurge Chamaesyce maculata (L.) Small Euphorbiales Euphorbiaceae
nodding spurge Chamaesyce nutans (Lag.) Small Euphorbiales Euphorbiaceae
ground spurge Chamaesyce prostrata (Ait.) Small Euphorbiales Euphorbiaceae
thymeleaf sandmat Chamaesyce serpyllifolia ssp. serpyllifolia (Pers.) Small Euphorbiales Euphorbiaceae
fireweed Chamerion angustifolium (L.) Holub Myrtales Onagraceae
dwarf fireweed Chamerion latifolium (L.) Holub Myrtales Onagraceae
greater celandine Chelidonium majus L. Papaverales Papaveraceae
white turtlehead Chelone glabra L. Scrophulariales Scrophulariaceae
red turtlehead Chelone obliqua L. Scrophulariales Scrophulariaceae
lambsquarters Chenopodium album L Caryophyllales Chenopodiaceae
Missouri lambsquarters Chenopodium album var. missouriense (Aellen) I.J. Bassett & C.W. Crompton Caryophyllales Chenopodiaceae
mexicantea Chenopodium ambrosioides L. Caryophyllales Chenopodiaceae
netseed lambsquarters Chenopodium berlandieri Moq Caryophyllales Chenopodiaceae
perennial goosefoot Chenopodium bonus-henricus L. Caryophyllales Chenopodiaceae
Jerusalem-oak goosefoot Chenopodium botrys L. Caryophyllales Chenopodiaceae
blite goosefoot Chenopodium capitatum (L.) Ambrosi Caryophyllales Chenopodiaceae
figleaved goosefoot Chenopodium ficifolium Sm. Caryophyllales Chenopodiaceae
cutleaf goosefoot Chenopodium multifidum L. Caryophyllales Chenopodiaceae
nettleleaf goosefoot Chenopodium murale L. Caryophyllales Chenopodiaceae
seaport goosefoot Chenopodium opulifolium Schrad. ex W.D.J. Koch & Ziz Caryophyllales Chenopodiaceae
clammy goosefoot Chenopodium pumilio R. Br. Caryophyllales Chenopodiaceae
quinoa Chenopodium quinoa Willd. Caryophyllales Chenopodiaceae
giantseed goosefoot Chenopodium simplex (Torr.) Raf. Caryophyllales Chenopodiaceae
goosefoot Chenopodium spp. L. Caryophyllales Chenopodiaceae
stinking goosefoot Chenopodium vulvaria L. Caryophyllales Chenopodiaceae
desert willow Chilopsis linearis (Cav.) Sweet Scrophulariales Bignoniaceae
spotted wintergreen Chimaphila maculata (L.) Pursh Ericales Pyrolaceae
pipsissewa Chimaphila umbellata (L.) W. Bart. Ericales Pyrolaceae
white fringetree Chionanthus virginicus Linnaeus Scrophulariales Oleaceae
Rocky Mountain snowlover Chionophila jamesii Benth. Scrophulariales Scrophulariaceae
rush skeletonweed Chondrilla juncea L. Asterales Asteraceae
blue mustard Chorispora tenella (Pallas) DC. Capparales Brassicaceae
arctic daisy Chrysanthemum arcticum L. Asterales Asteraceae
pyrethum daisy Chrysanthemum coccineum Willd. Asterales Asteraceae
chrysanthemum Chrysanthemum spp. L. Asterales Asteraceae
green and gold Chrysogonum virginianum L. Asterales Asteraceae
Maryland goldenaster Chrysopsis mariana (L.) Ell. Asterales Asteraceae
golden saxifrage Chrysosplenium tetrandrum (Lund ex Malmgr.) Th. Fries Rosales Saxifragaceae
Douglas rabbitbrush Chrysothamnus viscidiflorus (Hook.) Nutt. Asterales Asteraceae
chick pea Cicer arietinum L. Fabales Fabaceae (Leguminosae)
cultivated endive Cichorium endivia L. Asterales Asteraceae
chicory Cichorium intybus L. Asterales Asteraceae
western waterhemlock Cicuta douglasii (DC.) Coult. & Rose Apiales Apiaceae
spotted waterhemlock Cicuta maculata L. Apiales Apiaceae
spotted water hemlock Cicuta maculata var. angustifolia Hook. Apiales Apiaceae
camphortree Cinnamomum camphora (L.) J. Presl Laurales Lauraceae
tall thistle Cirsium altissimum (L.) Hill Asterales Asteraceae
Arizona thistle Cirsium arizonicum (Gray) Petrak Asterales Asteraceae
Canada thistle Cirsium arvense (L.) Scop. Asterales Asteraceae
Palouse thistle Cirsium brevifolium Nutt. Asterales Asteraceae
Cainville thistle Cirsium calcareum (M.E. Jones) Woot. & Standl. Asterales Asteraceae
peregrine thistle Cirsium cymosum (Greene) J.T. Howell Asterales Asteraceae
Eaton's thistle Cirsium eatonii (Gray) B.L. Robins. Asterales Asteraceae
yellow thistle Cirsium horridulum Michx. Asterales Asteraceae
Le Conte's thistle Cirsium lecontei Torr. & Gray Asterales Asteraceae
New Mexico thistle Cirsium neomexicanum Gray Asterales Asteraceae
snowy thistle Cirsium occidentale var. candidissimum (Greene) J.F. Macbr. Asterales Asteraceae
yellowspine thistle Cirsium ochrocentrum Gray Asterales Asteraceae
meadow thistle Cirsium scariosum Nutt. Asterales Asteraceae
mountain thistle Cirsium scopulorum (Greene) Cockerell ex Daniels Asterales Asteraceae
thistle Cirsium spp. P. Mill. Asterales Asteraceae
stemless thistle Cirsium tioganum (Congd.) Petrak Asterales Asteraceae
wavyleaf thistle Cirsium undulatum (Nutt.) Spreng Asterales Asteraceae
Tracy's thistle Cirsium undulatum var. tracyi (Rydb.) S.L. Welsh Asterales Asteraceae
bull thistle Cirsium vulgare (Savi) Ten. Asterales Asteraceae
rock rose Cistus incanus L. Violales Cistaceae
salvia cistus Cistus salviifolius L. Violales Cistaceae
juniper berry Citharexylum caudatum L. Lamiales Verbenaceae
watermelon Citrullus lanatus (Thunb.) Matsum. & Nakai Violales Cucurbitaceae
citronmelon Citrullus lanatus var. citroides (Bailey) Mansf. Violales Cucurbitaceae
watermelon Citrullus lanatus var. lanatus (Thunb.) Matsumura & Nakai Violales Cucurbitaceae
lime Citrus aurantifolia (Christm.) Swingle Sapindales Rutaceae
bitter orange Citrus limetta Risso Sapindales Rutaceae
pumelo Citrus maxima (Burm.) Merr. Sapindales Rutaceae
orange Citrus sinensis (L.) Osbeck Sapindales Rutaceae
citrus Citrus spp. L. Sapindales Rutaceae
lemon Citrus x limon (L.) Burm. Sapindales Rutaceae
grapefruit Citrus x paradisi Macfad. (pro sp.) [maxima × sinensis] Sapindales Rutaceae
Kentucky yellowwood Cladrastis kentukea (Dum.-Cours.) Rudd Fabales Fabaceae (Leguminosae)
pinkfairies Clarkia pulchella Pursh Myrtales Onagraceae
heartleaf springbeauty Claytonia cordifolia S. Wats. Caryophyllales Portulacaceae
lanceleaf springbeauty Claytonia lanceolata Pall. ex Pursh Caryophyllales Portulacaceae
miner's lettuce Claytonia perfoliata ssp. perfoliata Donn ex Willd Caryophyllales Portulacaceae
western springbeauty Claytonia rosea Rydb. Caryophyllales Portulacaceae
springbeauty Claytonia spp. L. Caryophyllales Portulacaceae
narrowleaf spring-beauty Claytonia virginica L. Caryophyllales Portulacaceae
firecracker cactus Cleistocactus baumannii (Lem.) Lem. Caryophyllales Cactaceae
cactus Cleistocactus sextonianus (Backeberg) D.Hunt Caryophyllales Cactaceae
Alpine clematis Clematis alpina (L.) Mill. Ranunculales Ranunculaceae
rock clematis Clematis columbiana (Nutt.) Torr. & Gray Ranunculales Ranunculaceae
hairy clematis Clematis hirsutissima Pursh Ranunculales Ranunculaceae
Scott's clematis Clematis hirsutissima var. scottii (Porter) Erickson Ranunculales Ranunculaceae
western white clematis Clematis ligusticifolia Nutt. Ranunculales Ranunculaceae
oriental virginsbower Clematis orientalis L. Ranunculales Ranunculaceae
leather flower Clematis spp. L. Ranunculales Ranunculaceae
sweet autumn virginsbower Clematis terniflora DC Ranunculales Ranunculaceae
vasevine Clematis viorna L. Ranunculales Ranunculaceae
devil's darning needles Clematis virginiana L Ranunculales Ranunculaceae
evergreen clematis Clematis vitalba L. Ranunculales Ranunculaceae
Jackman clematis Clematis x jackmanii T. Moore [lanuginosa × viticella] Ranunculales Ranunculaceae
spiderflower Cleome hassleriana Chod. Capparales Capparaceae
yellow spiderflower Cleome lutea Hook. Capparales Capparaceae
Rocky Mountain beeplant Cleome serrulata Pursh Capparales Capparaceae
spiderflower Cleome spinosa Jacq. Capparales Capparaceae
harlequin glorybower Clerodendron trichotomum C.P. Thunberg Lamiales Verbenaceae
coastal sweetpepperbush Clethra alnifolia L. Ericales Clethraceae
cleyera Cleyera spp. Theales Theaceae
soapbush Clidemia hirta (L.) D. Don Myrtales Melastomataceae
buckwheat tree Cliftonia monophylla (Lam.) Britt. ex Sarg. Ericales Cyrillaceae
butterfly pea Clitoria mariana L. Fabales Fabaceae (Leguminosae)
Scottish asphodel Clusia rosea Jacq Theales Clusiaceae
blessed thistle Cnicus benedictus L. Asterales Asteraceae
bullnettle Cnidoscolus stimulosus (Michx.) Engelm. & Gray Euphorbiales Euphorbiaceae
Texas bullnettle Cnidoscolus texanus (Müll. Arg.) Small Euphorbiales Euphorbiaceae
ivy gourd Coccinia grandis (L.) Voigt Violales Cucurbitaceae
seagrape Coccoloba uvifera (L.) L. Polygonales Polygonaceae
redberry moonseed Cocculus carolinus (L.) DC. Ranunculales Menispermaceae
spoonwort Cochlearia officinalis L. [excluded] Capparales Brassicaceae
robusta coffee Coffea canephora Pierre ex Froehner Rubiales Rubiaceae
coffee Coffea spp. L. Rubiales Rubiaceae
maiden blue eyed mary Collinsia parviflora Lindl. Scrophulariales Scrophulariaceae
Blue Ridge horsebalm Collinsonia serotina Walt. Lamiales Lamiaceae
grand collomia Collomia grandiflora Douglas ex Lindl. Solanales Polemoniaceae
tiny trumpet Collomia linearis Nutt. Solanales Polemoniaceae
Asian nakedwood Colubrina asiatica (L.) Brongn. Rhamnales Rhamnaceae
bladder senna Colutea arborescens L. Fabales Fabaceae (Leguminosae)
bastard toadflax Comandra umbellata (L.) Nutt. Santalales Santalaceae
marsh cinquefoil Comarum palustre L. Rosales Rosaceae
sweetfern Comptonia peregrina (L.) Coult. Myricales Myricaceae
narrow-leaved iceplant Conicosia pugioniformis (L.) N.E. Br Caryophyllales Aizoaceae
poison-hemlock Conium maculatum L. Apiales Apiaceae
button mangrove Conocarpus erectus L. Myrtales Combretaceae
blue mistflower Conoclinium coelestinum (L.) DC Asterales Asteraceae
American squawroot Conopholis americana (L.) Wallr. f. Scrophulariales Orobanchaceae
Oriental knight's-spur Consolida orientalis (J. Gay) Schroedinger Ranunculales Ranunculaceae
royal knight's-spur Consolida regalis Gray Ranunculales Ranunculaceae
mallow bindweed Convolvulus althaeoides L. Solanales Convolvulaceae
field bindweed Convolvulus arvensis L. Solanales Convolvulaceae
dwarf morning-glory Convolvulus tricolor L. Solanales Convolvulaceae
hairy fleabane Conyza bonariensis (L.) Cronquist Asterales Asteraceae
horseweed Conyza canadensis (L.) Cronq. Asterales Asteraceae
tall fleabane Conyza floribunda Kunth Asterales Asteraceae
dwarf fleabane Conyza ramosissima Cronquist Asterales Asteraceae
horseweeds Conyza spp. Less. Asterales Asteraceae
white manjack Cordia dentata Poir. Lamiales Boraginaceae
largeleaf geigertree Cordia sebestena Poir. Lamiales Boraginaceae
largeflower tickseed Coreopsis grandiflora Hogg ex Sweet Asterales Asteraceae
lanceleaf tickseed Coreopsis lanceolata L. Asterales Asteraceae
greater tickseed Coreopsis major Walt. Asterales Asteraceae
stiff tickseed Coreopsis palmata Nutt. Asterales Asteraceae
plains coreopsis Coreopsis tinctoria Nutt. Asterales Asteraceae
tall tickseed Coreopsis tripteris L. Asterales Asteraceae
whorled coreopsis Coreopsis verticillata L. Asterales Asteraceae
coriander Coriandrum sativum L. Apiales Apiaceae
alternateleaf dogwood Cornus alternifolia L. f. Cornales Cornaceae
bunchberry Cornus canadensis L. Cornales Cornaceae
roughleaf dogwood Cornus drummondii C.A. Mey. Cornales Cornaceae
flowering dogwood Cornus florida L. Cornales Cornaceae
Kousa dogwood Cornus kousa Hance Cornales Cornaceae
Kousa dogwood variety Cornus kousa var. chinensis Wyman & Bean Cornales Cornaceae
Cornelian cherry dogwood Cornus mas L. Cornales Cornaceae
Pacific dogwood Cornus nuttallii Audubon ex Torr. & Gray Cornales Cornaceae
Asiatic dogwood Cornus officinalis Siebold & Zucc. Cornales Cornaceae
gray dogwood Cornus racemosa Lam. Cornales Cornaceae
bloodtwig dogwood Cornus sanguinea L. Cornales Cornaceae
redosier dogwood Cornus sericea L. Cornales Cornaceae
redosier dogwood Cornus sericea ssp. sericea L. Cornales Cornaceae
dogwood Cornus spp. L Cornales Cornaceae
dogwood Cornus stolonifera L. Cornales Cornaceae
lesser swinecress Coronopus didymus (L.) Sm. Capparales Brassicaceae
greater swinecress Coronopus squamatus (Forsk.) Aschers. Capparales Brassicaceae
scrambled eggs Corydalis aurea Willd. Papaverales Fumariaceae
spring fumewort Corydalis solida (L.) Clairv. Papaverales Fumariaceae
American hazelnut Corylus americana Walt. Fagales Betulaceae
common filbert Corylus avellana L. Fagales Betulaceae
Turkish hazelnut Corylus colurna L. Fagales Betulaceae
beaked hazelnut Corylus cornuta Marsh. Fagales Betulaceae
giant filbert Corylus maxima Mill. Fagales Betulaceae
ghost gum Corymbia papuana F.Muell. Myrtales Myrtaceae
bloodwood Corymbia terminalis F.Muell. Myrtales Myrtaceae
cosmos Cosmos spp. Cav. Asterales Asteraceae
sulphur cosmos Cosmos sulphureus Cav. Asterales Asteraceae
European smoketree Cotinus coggygria Scop. Sapindales Anacardiaceae
American smoketree Cotinus obovatus Raf. Sapindales Anacardiaceae
Peking cotoneaster Cotoneaster acutifolius Turcz. Rosales Rosaceae
creeping cotoneaster variety Cotoneaster adpressus var. praecox Bois. Rosales Rosaceae
cranberry cotoneaster Cotoneaster apiculatus Rehd. & E.H. Wilson Rosales Rosaceae
spreading cotoneaster Cotoneaster divaricatus Rehd. & E.H. Wilson Rosales Rosaceae
orange cotoneaster Cotoneaster franchetii Boiss. Rosales Rosaceae
rockspray cotoneaster Cotoneaster horizontalis Dcne. Rosales Rosaceae
cotoneaster Cotoneaster integerrimus Medik. Rosales Rosaceae
milkflower cotoneaster Cotoneaster lacteus W.W. Smith Rosales Rosaceae
cotoneaster Cotoneaster melanocarpus Lodd. et al. Rosales Rosaceae
cotoneaster Cotoneaster multiflorus Bunge Rosales Rosaceae
cotoneaster Cotoneaster nebrodensis (Guss.) K. Koch Rosales Rosaceae
silverleaf cotoneaster Cotoneaster pannosus Franch. Rosales Rosaceae
cotoneaster Cotoneaster spp. Medik. Rosales Rosaceae
southern brassbuttons Cotula australis (Sieber) Hook. f. Asterales Asteraceae
brassbuttons Cotula coronopifolia L. Asterales Asteraceae
Mexican brassbuttons Cotula mexicana (DC.) Cabrera Asterales Asteraceae
small craibia Craibia zimmermannii (Harms)Dunn Fabales Fabaceae (Leguminosae)
sea kale Crambe maritima L. Capparales Brassicaceae
cockspur hawthorn Crataegus crus-galli Linnaeus Rosales Rosaceae
black hawthorn Crataegus douglasii Lindl. Rosales Rosaceae
yellowleaf hawthorn Crataegus flava Ait. Rosales Rosaceae
smooth hawthorn Crataegus laevigata (Poir.) DC. Rosales Rosaceae
parsley hawthorn Crataegus marshallii Egglest. Rosales Rosaceae
downy hawthorn Crataegus mollis Scheele Rosales Rosaceae
English hawthorn Crataegus monogyna Jacq. Rosales Rosaceae
Washington hawthorn Crataegus phaenopyrum (L. f.) Medik. Rosales Rosaceae
pasture hawthorn Crataegus spathulata Michx. Rosales Rosaceae
hawthorn Crataegus spp. L. Rosales Rosaceae
dwarf hawthorn Crataegus uniflora Muenchh. Rosales Rosaceae
Italian hawksbeard Crepis bursifolia L. Asterales Asteraceae
smooth hawksbeard Crepis capillaris (L.) Wallr Asterales Asteraceae
limestone hawksbeard Crepis intermedia Gray Asterales Asteraceae
fiddleleaf hawksbeard Crepis runcinata (James) Torr. & Gray Asterales Asteraceae
bristly hawksbeard Crepis setosa Haller f Asterales Asteraceae
narrowleaf hawksbeard Crepis tectorum L. Asterales Asteraceae
calabash tree Cresentia cujete L. Scrophulariales Bignoniaceae
alkaliweed Cressa truxillensis Kunth Solanales Convolvulaceae
Chilean lanterntree Crinodendron hookerianum Gay Malvales Elaeocarpaceae
goldenweed Croptilon divaricatum (Nutt.) Raf. Asterales Asteraceae
Indian rattlebox Crotalaria assamica Benth. Fabales Fabaceae (Leguminosae)
shakeshake Crotalaria incana L. Fabales Fabaceae (Leguminosae)
showy rattlebox Crotalaria spectabilis Roth Fabales Fabaceae (Leguminosae)
Alabama croton Croton alabamensis E.A. Sm. ex Chapman Euphorbiales Euphorbiaceae
woolly croton Croton capitatus Michx. Euphorbiales Euphorbiaceae
yellow balsam Croton flavens L. Euphorbiales Euphorbiaceae
vente conmigo Croton glandulosus L Euphorbiales Euphorbiaceae
tropic croton Croton glandulosus var. septentrionalis Müll. Arg. Euphorbiales Euphorbiaceae
Turkey mullein Croton setigerus Hook Euphorbiales Euphorbiaceae
smooth bedstraw Cruciata laevipes Opiz Rubiales Rubiaceae
crupina Crupina crupinastrum (Bor.) Vis. Asterales Asteraceae
common crupina Crupina vulgaris Cass. Asterales Asteraceae
miner's candle Cryptantha virgata (Porter) Payson Lamiales Boraginaceae
Palay rubbervine Cryptostegia grandiflora (Roxb. ex R. Br.) R. Br. Gentianales Asclepiadaceae
cantaloupe/honeydew Cucumis melo L Violales Cucurbitaceae
muskmelon Cucumis melo ssp. melo L. Violales Cucurbitaceae
dudaim melon Cucumis melo var. dudaim (L.) Naud. Violales Cucurbitaceae
cucumber Cucumis sativus L. Violales Cucurbitaceae
buffalo gourd Cucurbita foetidissima Kunth Violales Cucurbitaceae
winter squash Cucurbita maxima Duchesne Violales Cucurbitaceae
crookneck squash Cucurbita moschata Duchesne Violales Cucurbitaceae
pumpkin Cucurbita pepo L. Violales Cucurbitaceae
zucchini Cucurbita pepo var. pepo L. Violales Cucurbitaceae
Texas gourd Cucurbita pepo var. texana (Scheele) D. Decker Violales Cucurbitaceae
gourd Cucurbita spp. L. Violales Cucurbitaceae
carrotwood Cupaniopsis anacardioides (A. Rich.) Radlk. Sapindales Sapindaceae
waxweed Cuphea spp. P. Br. Myrtales Lythraceae
American dodder Cuscuta americana L Solanales Cuscutaceae
smallseed alfalfa dodder Cuscuta approximata Bab. Solanales Cuscutaceae
Australian dodder Cuscuta australis R. Br. Solanales Cuscutaceae
canyon dodder Cuscuta ceanothi Behr Solanales Cuscutaceae
Chinese dodder Cuscuta chinensis Lam. Solanales Convolvulaceae
flax dodder Cuscuta epilinum Weihe Solanales Cuscutaceae
clover dodder Cuscuta epithymum (L.) L. Solanales Cuscutaceae
swamp dodder Cuscuta gronovii Willd. ex J.A. Schultes Solanales Cuscutaceae
Jamaican crabgrass Cuscuta horizontalis Willd. Solanales Convolvulaceae
dodder Cuscuta hyalina Roth. Solanales Cuscutaceae
largeseed dodder Cuscuta indecora Choisy Solanales Cuscutaceae
Japanese dodder Cuscuta japonica Choisy Solanales Cuscutaceae
field dodder Cuscuta pentagona Engelm Solanales Cuscutaceae
fiveangled dodder Cuscuta pentagona var. pentagona Engelm. Solanales Cuscutaceae
beaked dodder Cuscuta rostrata Shuttlw. ex Engelm. & Gray Solanales Cuscutaceae
dodder Cuscuta spp. L. Solanales Cuscutaceae
guar Cyamopsis tetragonoloba (L.) Taubert Fabales Fabaceae (Leguminosae)
giant sumpweed Cyclachaena xanthifolia (Nutt.) Fresen. Asterales Asteraceae
winged pigweed Cycloloma atriplicifolium (Spreng.) J.M. Coult. Caryophyllales Chenopodiaceae
wild celery Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P. Wilson Apiales Apiaceae
quince Cydonia oblonga P. Mill. Rosales Rosaceae
Kenilworth ivy Cymbalaria muralis P.G. Gaertn., B. Mey. & Scherb. Scrophulariales Scrophulariaceae
mountain springparsley Cymopterus montanus Nutt. ex Torr. & Gray Apiales Apiaceae
Rocky Mountain springparsley Cymopterus planosus (Osterhout) Mathias Apiales Apiaceae
honeyvine swallowwort Cynanchum laeve (Michx.) Pers. Gentianales Asclepiadaceae
black swallowwort Cynanchum louiseae Kartesz & Gandhi Gentianales Asclepiadaceae
European swallowwort Cynanchum rossicum (Kleopov) Barbarich Gentianales Asclepiadaceae
shallow-wort Cynanchum spp. L. Gentianales Asclepiadaceae
cardoon Cynara cardunculus L. Asterales Asteraceae
Pacific hound's tongue Cynoglossum grande Douglas ex Lehm. Lamiales Boraginaceae
houndstongue Cynoglossum officinale L. Lamiales Boraginaceae
swamp titi Cyrilla racemiflora Linnaeus Ericales Cyrillaceae
broom Cytisus nigricans L. Fabales Fabaceae (Leguminosae)
Scotch broom Cytisus scoparius (L.) Link Fabales Fabaceae (Leguminosae)
eben tree Dacryodes edulis (G. Don) H. J. Lam Sapindales Burseraceae
dahlia Dahlia spp. Cav. Asterales Asteraceae
purpletassels Dalea gattingeri (Heller) Barneby Fabales Fabaceae (Leguminosae)
spurgelaurel Daphne laureola L. Myrtales Thymelaeaceae
February daphne Daphne mezereum L. Myrtales Thymelaeaceae
bush cinquefoil Dasiphora fruticosa (L.) Rydb. Rosales Rosaceae
shrubby cinquefoil Dasiphora fruticosa ssp. floribunda (Pursh) Kartesz, comb. nov. ined. Rosales Rosaceae
mullein foxglove Dasistoma macrophylla (Nutt.) Raf. Scrophulariales Scrophulariaceae
angel's trumpet Datura innoxia Miller Solanales Solanaceae
Chinese thorn-apple Datura quercifolia Kunth Solanales Solanaceae
jimsonweed Datura stramonium L. Solanales Solanaceae
sacred thorn-apple Datura wrightii Regel Solanales Solanaceae
Queen Anne's lace, wild carrot Daucus carota L. Apiales Apiaceae
wild carrot Daucus carota ssp. carota L. Apiales Apiaceae
carrot Daucus carota ssp. sativus (Hoffm.) Arcang. Apiales Apiaceae
southwestern carrot Daucus pusillus Michx. Apiales Apiaceae
swamp loosestrife Decodon verticillatus (L.) Ell. Myrtales Lythraceae
cape ivy Delairea odorata Lem Asterales Asteraceae
Alabama larkspur Delphinium alabamicum Kral Ranunculales Ranunculaceae
tall larkspur Delphinium barbeyi (Huth) Huth Ranunculales Ranunculaceae
Carolina larkspur Delphinium carolinianum Walt. Ranunculales Ranunculaceae
Carolina larkspur Delphinium carolinianum ssp. virescens (Nutt.) R.E. Brooks Ranunculales Ranunculaceae
low larkspur Delphinium nuttallianum Pritz. ex Walp. Ranunculales Ranunculaceae
mountain larkspur Delphinium ramosum Rydb. Ranunculales Ranunculaceae
larkspur Delphinium spp. L. Ranunculales Ranunculaceae
dwarf larkspur Delphinium tricorne Michx. Ranunculales Ranunculaceae
duncecap larkspur Delphinium x occidentale (S. Wats.) S. Wats. (pro sp.) [barbeyi × glaucum] Ranunculales Ranunculaceae
Sierra tansymustard Descurainia californica (Gray) O.E. Schulz Capparales Brassicaceae
mountain tansymustard Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn Capparales Brassicaceae
mountain tansymustard Descurainia incana ssp. incisa (Engelm. ex A. Gray) Kartesz & Gandhi Capparales Brassicaceae
pinnate tansymustard Descurainia pinnata (Walt.) Britt Capparales Brassicaceae
flixweed Descurainia sophia (L.) Webb ex Prantl Capparales Brassicaceae
northern tansymustard Descurainia sophioides (Fisch. ex Hook.) O.E. Schulz Capparales Brassicaceae
taique Desfontainia spinosa Ruiz & Pav. Gentianales Loganiaceae
Illinois bundleflower Desmanthus illinoensis (Michx.) MacM. ex B.L. Robins. & Fern. Fabales Fabaceae (Leguminosae)
showy ticktrefoil Desmodium canadense (L.) DC. Fabales Fabaceae (Leguminosae)
creeping beggarweed Desmodium incanum DC. Fabales Fabaceae (Leguminosae)
greenleaf ticktrefoil Desmodium intortum (Mill.) Urb. Fabales Fabaceae (Leguminosae)
smooth ticktrefoil Desmodium laevigatum (Nutt.) DC. Fabales Fabaceae (Leguminosae)
stiff ticktrefoil Desmodium obtusum (Muhl. ex Willd.) DC. Fabales Fabaceae (Leguminosae)
ticktrefoils Desmodium spp. Desv. Fabales Fabaceae (Leguminosae)
pinebarren ticktrefoil Desmodium strictum (Pursh) DC. Fabales Fabaceae (Leguminosae)
Florida beggarweed Desmodium tortuosum (Sw.) DC. Fabales Fabaceae (Leguminosae)
slender pride of Rochester Deutzia gracilis Siebold & Zucc. Rosales Hydrangeaceae
fuzzy pride-of-Rochester Deutzia scabra Thunb. Rosales Hydrangeaceae
Lemoine Deutzia Deutzia x lemoinei Lemoine ex Bois Rosales Hydrangeaceae
elf orpine Diamorpha smallii Britt. ex Small Rosales Crassulaceae
Deptford pink Dianthus armeria L. Caryophyllales Caryophyllaceae
carnation Dianthus caryophyllus L. Caryophyllales Caryophyllaceae
maiden pink Dianthus deltoides L. Caryophyllales Caryophyllaceae
cheddar pink Dianthus gratianapolitanus Caryophyllales Caryophyllaceae
carnation Dianthus spp. L. Caryophyllales Caryophyllaceae
squirrel corn Dicentra canadensis (Goldie) Walp. Papaverales Fumariaceae
dutchman's breeches Dicentra cucullaria (L.) Bernh. Papaverales Fumariaceae
turkey corn Dicentra eximia (Ker-Gawl.) Torr. Papaverales Fumariaceae
Carolina dichondra Dichondra carolinensis Michx. Solanales Convolvulaceae
Asian ponysfoot Dichondra micrantha Urb. Solanales Convolvulaceae
aroma Dichrostachys cinerea (L.) Wight & Arn. Fabales Fabaceae (Leguminosae)
gasplant Dictamnus albus L Sapindales Rutaceae
foxglove Digitalis purpurea L. Scrophulariales Scrophulariaceae
digitalis Digitalis spp. L. Scrophulariales Scrophulariaceae
longan Dimocarpus longan Lour. Sapindales Sapindaceae
glandular Cape marigold Dimorphotheca sinuata DC. Asterales Asteraceae
flowering stone Dinteranthus microspermus puberulus (N. E. Brown) Sauer Caryophyllales Aizoaceae
poorjoe Diodia teres Walt. Rubiales Rubiaceae
Virginia buttonweed Diodia virginiana L Rubiales Rubiaceae
Venus flytrap Dionaea muscipula Ellis Nephenthales Droseraceae
common persimmon Diospyros virginiana L. Ebenales Ebenaceae
American umbrellaleaf Diphylleia cymosa Michx. Ranunculales Berberidaceae
wall rocket Diplotaxis tenuifolia (L.) DC. Capparales Brassicaceae
common teasel Dipsacus fullonum L. Dipsacales Dipsacaceae
Fuller's teasel Dipsacus fullonum sylvestris (Huds.) Clapham Dipsacales Dipsacaceae
cutleaf teasel Dipsacus laciniatus L. Dipsacales Dipsacaceae
Fuller's teasel Dipsacus sativus (L.) Honckeny Dipsacales Dipsacaceae
teasel Dipsacus spp. L. Dipsacales Dipsacaceae
eastern leatherwood Dirca palustris L. Myrtales Thymelaeaceae
stinkwort Dittrichia graveolens (L.) W. Greuter Asterales Asteraceae
Bonneville shootingstar Dodecatheon conjugens Greene Primulales Primulaceae
western arctic shootingstar Dodecatheon frigidum Cham. & Schltdl. Primulales Primulaceae
pride of Ohio Dodecatheon meadia L. Primulales Primulaceae
darkthroat shootingstar Dodecatheon pulchellum (Raf.) Merr. Primulales Primulaceae
shooting star Dodecatheon spp. L. Primulales Primulaceae
Florida hopbush Dodonaea viscosa (L.) Jacq. Sapindales Sapindaceae
parasol whitetop Doellingeria umbellata var. umbellata (Mill.) Nees Asterales Asteraceae
slender draba Draba albertina Greene Capparales Brassicaceae
golden draba Draba aurea Vahl ex Hornem Capparales Brassicaceae
snowbed draba Draba crassifolia Graham Capparales Brassicaceae
Austrian draba Draba fladnizensis Wulfen Capparales Brassicaceae
lancepod draba Draba lonchocarpa Rydb. Capparales Brassicaceae
showy draba Draba spectabilis Greene Capparales Brassicaceae
spring whitlowgrass Draba verna L. Capparales Brassicaceae
coneflower Dracopis spp. Cass. Asterales Asteraceae
showy dewflower Drosanthemum floribundum (Haw.) Schwant. Caryophyllales Aizoaceae
dwarf sundew Drosera brevifolia Pursh Nephenthales Droseraceae
pink sundew Drosera capillaris Poir. Nephenthales Droseraceae
threadleaf sundew Drosera filiformis Raf. Nephenthales Droseraceae
spoonleaf sundew Drosera intermedia Hayne Nephenthales Droseraceae
roundleaf sundew Drosera rotundifolia L. Nephenthales Droseraceae
sundews Drosera spp. L. Nephenthales Droseraceae
white mountain-avens Dryas integrifolia Vahl Rosales Rosaceae
mountain dryas Dryas octopetala L. Rosales Rosaceae
mountain-avens Dryas spp. Rosales Rosaceae
alfombrilla Drymaria arenarioides Humboldt & Bonpland Caryophyllales Caryophyllaceae
heartleaf drymary Drymaria cordata (L.) Willd. ex J.A. Schultes Caryophyllales Caryophyllaceae
Indian mock-strawberry Duchesnea indica (Andr.) Focke Rosales Rosaceae
oblongleaf snakeherb Dyschoriste oblongifolia (Michx.) Kuntze Scrophulariales Acanthaceae
fetid marigold Dyssodia papposa (Vent.) A.S. Hitchc Asterales Asteraceae
purple coneflower Echinacea purpurea (L.) Moench Asterales Asteraceae
wavyleaf purple coneflower Echinacea simulata R.L. McGregor Asterales Asteraceae
coneflowers Echinacea spp. Moench Asterales Asteraceae
scarlet hedgehog cactus Echinocereus coccineus Engelm. var. coccineus Caryophyllales Cactaceae
Engelmann's hedgehog cactus Echinocereus engelmannii (Parry ex Engelm.) Lem. Caryophyllales Cactaceae