GUIDE TO POISONOUS PLANTS
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Complete List of Plants
125 Plants matching your search criteria found.
Common Name
Botanic Name
Plant Image
Map
Adonis, Summer pheasants eye
Adonis species (A.aestivalis, A. annua, A. vernalis) Synonym (ITIS) Adonis aestivalis var. citrina Hoffm., Adonis autumnalis L., Chrysocyathus vernalis (L.) Holub
Alsike clover
Trifolium hybridum (ITIS) Trifolium elegans Savi, Trifolium hybridum ssp. elegans (Savi) Asch. & Graebn., Trifolium hybridum var. elegans (Savi) Boiss.,Trifolium hybridum var. pratense Rabenh.)
Angel's trumpet
Brugmansia species, Brugmansia Pers. (USDA, ITIS) Synonyms: Datura candida (Pers.) Saff., Brugmansia arborea auct. non (L.) Steud., Datura arborea L. , Brugmansia candida Pers.
Arrow grass, pod grass, goose grass
Triglochin maritima, Triglochin maritima L. (USDA, ITIS) Triglochin palustris
Autumn crocus, meadow saffron
Colchicum autumnale, Colchicum autumnale L. (ITIS, USDA)
Avocado
Persea americana Mill. (USDA, ITIS), Synonyms: Persea gratissima C.F. Gaertn., Laurus persea L., Persea nubigena L.O. Williams, Persea persea (L.) Cockerell
No Image Available
Baccharis, Desert broom, false willow, silverling, yerba manza, yerba de pasmo
Baccharis spp.
Baneberry
Actaea rubra
Bindweed, wild morning-glory
Convolvulus arvensis
Bitterweeds, rubberweed, Pingue
Hymenoxys
Black Henbane, hogs bean
Hyoscyamus niger L.
Black Locust, locust, false acacia
Robinia pseudoacacia
Black walnut
Juglans nigra
Blue Flax, common flax.
Linum perenne L. (an introduced species that is common and invasive) Linum lewisii Pursh (native species). Linum usitatissimum L. (introduced species)
Bouncing bet, Soapweed
Saponaria officinalis L.
Bracken fern, brake fern, eagle fern
Pteridium aquilinum L. Kuhn
Buckeye, horse chestnut
Aesculus spp.
Buckwheat
Fagopyrum esculentum Moench
Buffalo bur, Kansas thistle, duraznillo
Solanum rostratum Dunal
Burdock, lesser burdock, burweed
Arctium L.
Buttercup, crowsfoot
Ranunculus spp. Among the buttercups considered more toxic to animals than others are R. scleratus, R. flammula, R. parviflora, R. acris, R. abortivus, R. repens, R. cymbalaria, and R. testiculatus
Cala lily, arum lily, pig lily, lirio calla
Zantedeschia aethiopica ( 6 species)
No Map Available
Carolina jessamine, yellow jessamine, evening trumpet vine
Gelsemium sempervirens (L.)
Castor bean, castor oil plant, higuerilla, palma Christi
Ricinus communis L.
China berry, Persian lilac, white cedar, Texas umbrella tree
Melia azedarach L.
No Map Available
Choke cherry
Prunus virginiana L.
Clematis, Virgin's bower, traveller's joy, leather flower
Clematis L. (200 species)
Cocklebur
Xanthium L.
Colorado Rubber Weed, Pingue, Bitterweed
Hymenoxys richardsonii (hook.) Cockerell Hymenoxys odorata
Cow cockle, spring cockle, dairy pink, cow soapwort
Vaccaria hispanica (Mill.) Rauschert
No Image Available
Crotalaria, rattlepod
Crotalaria spectabilis Roth
Crown vetch
Securigera varia (L.) Lassen Coronilla varia
Curly leafed dock, sorrel Winged Dock
Rumex crispus L. Rumex venosus Pursh
Day blooming jasmine, night blooming jasmine, Cestrum, Day blooming jessamine
Cestrum L.
Death Camas
Zigadenus Michx.
Desert Baileya
Baileya multiradiata Harv. & A. Gray ex A. Gray
Dogbane, Indian hemp.
Apocynum cannabinum L.
Elderberry
Sambucus L.
False-hellebore, Skunk cabbage, corn-lily.
Veratrum californicam. American false hellebore (V. viride) is the most common and is found in most northern States from East to West including Canada. Others species include V. alblum
Fiddleneck, tarweed, yellow bur weed
Amsinckia intermedia
Flatweed, cat's ears, false dandelion
Hypochaeris radicata
No Map Available
Flixweed
Descurainia sophia
Fly Poison, Staggergrass
Amianthium muscaetoxicum (chrosperma muscaetoxicum)
No Map Available
Foothills Larkspur
Delphinium geyeri
Foxglove
Digitalis purpurea
Fringed sage, sagewort
Artemesia frigida
Goats Rue, professor weed, French lilac
Galega officinalis
No Map Available
Golden banner, yellow pea, false lupine
Thermopsis montana
Golden chain tree
Laburnum anagyroides
No Map Available
Greasewood, chico
Sarcobatus vermiculatus
Ground cherry, Chinese lantern
Physalis spp.
Gum weed, Resinweed
Grindelia squarrosa
Hairy Vetch
Vicia villosa
No Map Available
Halogeton, bavilla
Halogeton glomeratus
Hemlock, poison hemlock, spotted hemlock.
Conium maculatum
Hoary alyssum
Berteroa incana
No Map Available
Horse brush
Tetradymia canscens
Horse chestnut, buckeyes
Aesculus species
Horse nettle, Carolina horse nettle, bull nettle
Solanum carolinense
Horsebrush
Tetradymia canescens-spineless horsebrush
Horsetails, scouring rush
Equisetum arvense
No Map Available
Hound's Tongue, beggar’s lice, dog’s tongue, sheep bur, dog bur, glovewort, and woolmat.
Cynoglossum officinale
Japanese Pieris
Pieris japonica
No Map Available
Jessamine, Carolina jessamine, yellow jessamine
Gelsemium sempervirens
No Map Available
Jimmy weed, burrow weed, rayless goldenrod
Isocoma pluriflora (Haplopappus heterophyllus, Iscoma wrightii, Aplopappus)
No Map Available
Jimson weed, Thorn apple
Datura stramonium
Johnson grass
Sorghum halepense
Kentucky coffee tree
Gymnocladus dioica
No Map Available
Kochia weed, Mexican fire weed, summer cypress, morenita
Kochia scoparia
Lamb's Quarter
Chenopodium spp.
No Map Available
Lantana
Lantana camara
Larkspur
Delphinium barbeyi. There are several similar species of tall larkspur, the most common of which are D. glaucescens, and D. occidentale.
No Map Available
Laurel , mountain laurel, calico bush
Kalmia species
No Map Available
Leafy Spurge
Euphorbia esula
Leucaena, Whitelead tree, Guaje, Huaxin, Koa haole
Leucaena leucocephala
No Map Available
Lily of the Nile, Agapanthus Lily, African blue lily
Agapanthus africanus
No Map Available
Lily of the valley
Convallaria majalis
No Map Available
Lily, Easter lily, Asiatic lily, tiger lily
Lilium species
No Map Available
Locoweed, white point-locoweed, crazy weed
Oxytropis sericea
Low larkspur, foot-hills larkspur and plains larkspur
Delphinium nuttallianum, D. andersonii, D. bicolor (low larkspur). Delphinium geyeri (Foot-hills larkspur), D. virescens (Plains larkspur)
Lupine, blue bonnet
Lupinus species (100 species in North America)
May apple
Podophyllum peltatum
No Map Available
Milkweed
Asclepias species
Monkshood, Aconite
Aconitum species
Mountain mahogony
Cercocarpus montanus
Nandina, heavenly bamboo, Chinese heavenly bamboo.
Nandina domestica
No Map Available
Narcissus, daffodil
Narcissus species
No Map Available
Nightshade, black nightshade, deadly nightshade.
Solanum nigrum
Nolina, bear grass,sacahuiste, bunch grass
Nolina texana
No Map Available
Oak
Quercus gambelii - Gambel's oak
Oleander, rose laurel
Nerium oleander
Onions
Allium spp.
Orange Sneezeweed
Dugaldia hoopesii (Helenium hoopesii)
Oxalis, wood sorrel, soursob, creeping oxalis,
Oxalis spp.
Paintbrush, Indian Paintbrush
Castilleja species
Penstemon, beard tongue
Penstemon species
Perilla mint, beafsteak plant
Perilla frutescens
No Map Available
Pig weed, amaranth
Amaranthus retroflexus
Red Maple
Acer rubrum L.
Scotch Broom
Cytisus scoparius
No Map Available
Senecio, groundsel, tansy ragwort
Senecio species
Service berry, Saskatoon berry, June berry
Amelanchier alnifolia, (A. humilis)
Silverleaf night shade, trompillo
Solanum elaeagnifolium
Snakeweed, broomweed, turpentine weed.
Gutierrezia sarothrae
Sneezeweeds, bitterweed
Helenium species
Snow on the Mountain
Euphorbia marginata
Sophora, Texas mountain laurel, mescal bean, coral bean, Frijollito
Sophora secundiflora
No Map Available
Spotted or blue locoweed
Astragalus lentiginosus
St. Johnswort, Klamath weed, goat weed, tipton weed
Hypericum perforatum
Suckleya, poison suckleya
Suckleya suckleyana
Sudan grass
Sorghum sudanensis
No Map Available
Tansy mustard
Descurainia pinata
Tree tobacco
Nicotiana glauca
No Map Available
Two-grooved milk vetch
Astragalus bisulcatus
Vipers's bugloss, blueweed
Echium vulgare
Virginia creeper, woodbine
Parthenocissus quinquefolia
No Map Available
Water Hemlock
Cicuta douglasii, C. maculata- spotted water hemlock
White snakeroot, Rich weed, white sanicle, white top, squaw weed,
Ageratina altissima (Eupatorium rugosum)
No Map Available
Woody Aster
Xylorrhiza glabriuscula
Woolly Locoweed
Astragalus mollissimus
Yellow Oleander, 'Be-still tree', Lucky nut
Thevetia peruviana, Thevetia thevetioides
No Map Available
Yellow star thistle, St Barneby's thistle
Centaurea solstitialis
Yellow sweet clover
Melilotus officinalis, M. Alba (White sweet clover)
Yew
Taxus spp.
Zamia integrifolia (Z. floridana)
Coontie, Sago palm, chamal, coyolillo
No Map Available
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