Urban Detective

TOXIC PLANTS

The list contains about 90 toxic plants with toxicity ratings indicated by the number key when known.
Lack of a rating does not discount toxicity.

Care has been exerted to display correct information, but accuracy is not guaranteed.
The user may use this at their own risk.

Poisonous plant index

Toxicity ratings

Scientific names

Aconite	Alfalfa	Amaryllis, daffodil, narcissus	Angel's Trumpet (see Jimsonweed)	Arrowgrass
Asparagus fern	Azalea	Baneberry, Snakeberry	Belladonna (see Nightshade)	Birdsfoot, Trefoil
Bitter Cherry, (Wild Cherries)	Black Locust	Black nightshade	Black Nightshade, Nightshade)	Black Cherry, (Wild Cherries)
Bleeding Heart	Bloodroot	Bouncingbet	Bracken fern	Buckeye
Buckwheat	Burning Bush	Buttercups	Buttonbush	Caladium
Careless (Pigweed)	Castor bean	Choke Cherry, (Wild Cherries)	Cherry laurel	Chinaberry
Christmas Rose	Chrysanthemum	Clover, Alsike/ Red/ White Clover	Cocklebur	Cowbane (see Water Hemlock)
Creeping Charlie (Ground Ivy)	Daphne	Daffodil, narcissus, amaryllis	Deadly Nightshade(Nightshade)	Death Angel, Death Cap Mushrooms
Death Cap Mushrooms	Delphiniums	Destroying Angels	Devil's Trumpet (see Jimsonweed)	Dock
Dogbane	Dolls Eyes, Snakeberry (see Baneberry)	Downy Thornapple (see Jimsonweed)	Dutchman	Easter lily
Elephant Ears, (See Caladium)	English ivy	Elderberry	Fireweed (see Burning Bush)	Fireweed
Foxglove	Ground Ivy, Creeping Charlie	Groundsels, Senecio, and Ragworts	Heavenly Bamboo, Nandina domestica	Henbane
Horsetails	Horse Chestnut	Horse Nettle (see Nightshade)	Hyacinth	Hydrangea
Irises	Jack in the Pulpit	Jimsonweed	Johnson grass	Lantana, Red Sage, Yellow Sage
Lamb's Quarters	Larkspur	Lily of the Valley	Locoweed	Lucerne (see Alfalfa)
Lupine	Marajuana	Mexican poppy (see poppy)	Milkweed	Mistletoe
Monkshood (see Aconite )	Mountain laurel	Nandina domestica, Heavenly Bamboo	Narcissus, daffodil, amaryllis	Nightshade, Horse Nettle
Oak Trees	Oleander	PeaceLily	Philodendron	Pigweed (Careless)
Poinsettia, Spurges, Snow on the Mountain	Poison hemlock	Poison ivy	Poison sumac	Poison Oak
Poinsettia, Spurges, Snow on the Mountain	Pokeweed	Poppies	Prickly Poppy, Mexican poppy	Ragworts, Senecio (see Groundsels )
Rhododendron	Rhubarb	Sago Palm	Senecio, Ragworts(Groundsels)	Snakeberry, Dolls Eyes(Baneberry)
Snow on the Mountain	Staggerweed (see Dutcman breeches)	St. Johns Wort	Star of Bethlehem	Stinging Nettle
Trefoil (See Birdsfoot)	Vetch	Water Hemlock or Cowbane	Wild Cherries	Wisteria
Wolfsbane	Yellow Star Thistle	Yellow jessamine	Yucca	Yew

Common name, Scientific Name, Description	Toxicity level Primary Poison	Photo
Common Name: Aconite, Monkshood, see Wolfsbane Scientific Name: Aconitum spp	aconitine
Common Name: Alfalfa or Lucerne Scientific Name: Medicago sativa Most affected: cattle, chickens, humans, sheep Part: The entire plant	canavanine, saponins
Common Name: Amaryllis Scientific Name: Amaryllis spp The bulbs or corms of tulip, daffodil, jonquil, narcissus, amaryllis, and iris produce primarily gastrointestinal signs (vomiting and diarrhea) after consumption, and are not as toxic as lily of the valley	3 Lycorine
Common Name: Arrowgrass Scientific Name: Triglochin maritima Most affected: cattle, sheep Part: all, leaves, flowers	taxiphillin, triglochinin
Common Name: Asparagus Fern Scientific Name:. Asparagus sprengeri Most affected: Dogs and cats Clinical signs: allergic dermatitis with repeated dermal exposure. Berry ingestion could result in gastric upset (vomiting, abdominal pain, or diarrhea.)	Unknown
Common Name: Azalea Scientific Name: Rhododendron spp. Most affected: All Part: The entire plant	3 Andromedotoxins (grayanotoxins)
Common Name: Baneberry, Dolls Eyes, White Cohosh, Snakeberry Scientific Name: Actaea spp Digestive disturbances including vomiting, diarrhea, and colic. Neurologic signs of weakness and seizures. Cardiac signs. Most affected: roots, sap, berries Part: The entire plant	protoanemonin
Common Name: Birdsfoot, Trefoil Scientific Name: Lotus corniculatus Most affected: cattle, sheep	CN tannini
Common Name: Black Locust Scientific Name: Robinia pseudoacacia Nausea, emesis, diarrhea and renal failure may be accompanied by weakness, dyspnea, tachycardia and depression. Most affected: horses, cattle, humans, poultry, sheep, goats Part: bark, leaves, seeds	2 robin, phasin
Common Name: Black nightshade Scientific Name: Solanum nigrum GI signs include anorexia, nausea, salivation, abdominal pain, emesis, constipation or diarrhea Most affected: All classes of livestock and humans have been poisoned Part: The berries and leaves	atropine and scopalamine
Common Name: Bleeding Heart, Squirrel Corn, Dutchman's Breeches Scientific Name: Dicentra spp. In cattle, muscle tremors, staggering are seen. Also projectile vomiting, convulsions, and lateral recumbancy with extensor rigidity may be seen. Animals rarely die from Dicentra poisoning Most affected: cats, cattle, humans Part: All	2 isoquinolone alkaloids
Common Name: Bloodroot Scientific Name: Sanquinaria canadensis Bloodroot alkaloids has some narcotic properties. All parts of the plant are poisonous but the toxins are most highly concentrated in the root after leaves are completely open. The active alkaloid levels vary greatly between regions as well as populations. Many can affect the heart and respiratory system.	sanguinarine, chelerythrine, protopine, and homochelidonine, and resins.
Common Name: Bouncing bet Scientific Name: Saponaria officinalis Poisoning caused by bouncing bet is usually mild. The poison irritates the digestive tract and may cause vomiting, signs suggestive of nausea, and diarrhea.	1 saponins
Common Name: Bracken fern Scientific Name: Pteridium aquilinum Depression, muscle tremors, uncoordinated gait. Retinal degeneration and blindness. Hemorrhaging and bone marrow destruction, urinary bladder cancer, and digestive tract cancers. Most affected: cattle, sheep, pigs, horses, and humans.	3 prunasin, ptaquiloside, thiaminase
Common Name: Buckeye, Horse Chestnut Scientific Name: Aesculus spp. 5-7 leaflets; flowers in clusters. Poisoning causes vomiting and gastrointestinal irritation. Most affected: humans, cattle, goats Part: Young growing sprouts, leaves, and seeds, fruit	3 Unknown, possibly saportins, narcotic alkaloids, or glycosides
Common Name: Buckwheat Scientific Name: Fagoypyrum esculentum Most affected: horses, goats	Unknown
Common Name: Burning Bush (Fireweed, Summer cypress Scientific Name: Kochia scoparia (L.) Schrad. Sudden death may result if high in nitrates. Brown colored mucous membranes and blood are typical of nitrate poisoning. Also severe difficulty in breathing, severe depression, blindness, incoordination, kidney and liver failure.
Common Name: Buttercups or Crowfoot Scientific Name: Ranunculus spp. Most affected: cattle, goats, horses Part: All	2 protoanemonin
Common Name: Buttonbush Scientific Name: Cephalanthus occidentalis Most affected: Cattle are primarily affected Part: Leaves of this plant
Common Name: Caladium, Adam-and-Eve plant Scientific Name: Arum spp. Most affected: All Part: Whole plant	3
Common Name: Careless weed, Pigweed Scientific Name: Amaranthus palmeri S. Wats. Muscle weakness, muscle tremors, and renal failure. Death may result from increased serum potassium levels	nitrate
Common Name: Castor Bean Scientific Name: Ricinus communis A 2-3 ft. tall annual bushy shrub with large, palmately lobed leaves. Flowers are terminal panicles, fruits are globose, trilocular capsules with 3 oval seeds which resemble engorged ticks. Most affected: All Part: seeds	4 ricin, albumin
Common Name: Cherry laurel Scientific Name: Prunus caroliniana laurocerasus Most affected: Ruminants (cattle, sheep, goats) are most often affected Part: The leaves, bark and twigs are toxic
Common Name: Chinaberry Scientific Name: Melia azederach Most affected: Swine and sheep are most often affected. Poultry and cattle can be poisoned. Can see slow heartrate, diarrhea, vomiting, depression, weakness, seizures, and shock. Part: Berries are most toxic part. The leaves, bark and flowers are only mildly toxic	Tetranortriterpene- neurotoxins, unspecified gastroenteric toxin
Common Name: Chrysanthemum Scientific Name: Chrysanthemum indicu Can develop contact dermatitis after extended exposure to garden chrysanthemums	Arteglasin A
Common Name: Alsike Clover, Red Clover, White Clover Scientific Name: Trifolium spp Most affected: horse, cattle Part all, leaves	1 nitrate
Common Name: Cocklebur Scientific Name: Xanthium strumarium Most affected: cattle, humans, rodents, swine Part: seedlings, seeds	carboxyat- ractyloside
Common Name: Daphne Scientific Name:. Daphne spp. Most affected: cats, dogs, humans Part: berries, all	mezereinic acid anhydride
Common Name: Death Cap Mushrooms Scientific Name: Amanita spp. Most affected: All Part: cap	4 toxalbumin
Common Name: Death Angel Mushrooms, Monkey Agaric, Panther Cap, Death Cap Scientific Name: Amanita spp Most affected: All Part: Cap	toxalbumin
Common Name: Destroying Angels Scientific Name: A. verna Most affected: All Part: Cap	ibotenic acid and muscimol
Common Name: Delphiniums and Larkspurs Scientific Name: Delphinium spp. Sudden onset of excitability, disoreintation, muscle tremors, stiffness and paresis. Affected animals may bloat or attempt to vomit which can cause aspiration pneumonia. Cardiac arrhythmias may be present. Signs progress to severe weakness, prostration and seizures. Death results from respiratory paralysis. Most affected: cattle, humans, goats Part: All	2 alkaloids delphinine, ajacine, and others
Common Name: Dock Scientific Name: Rumex spp Most affected: cattle, sheep Part: Leaves	soluble oxalates
Common Name: Dogbane Scientific Name: Apocynum spp Diarrhea, weakness, cold extremities, bradycardia, and arrhythmias. Impaction and constipation may occur because of the fibrous nature of the plant. Most affected: horses, cattle, humans, sheep, cats, dogs, goats Part: rhizome	apocynamarin
Common Name: Dutchman breeches, staggerweed - Dicentra cucullaria Scientific Name: Bernh. & Dicentra canadensis (Goldie) Walp. In cattle, muscle tremors, staggering are seen. Also projectile vomiting, convulsions, and lateral recumbancy with extensor rigidity may be seen. Animals rarely die from Dicentra poisoning Most affected: cats, cattle, humans Part: All	2 isoquinolone alkaloids
Common Name: Easter Lily Scientific Name:. Lilium longiflorum Most affected: Dogs and cats Clinical signs: vomiting, inappetence, lethargy, and kidney failure. Cats are only species known to be affected	4
Common Name: Elderberry Scientific Name: Sambucus canadensis Most affected: cattle, humans, goats Part: leaves, twigs, roots, unripe fruits	4 sambunigrin
Common Name: English ivy Scientific Name: Hedera helix L. Oral irritation, stomach irritation, diarrhea, breathing problems, coma, death.	2 didehydro- falcarinol, falcarinol, hederasaponins
Common Name: Fireweed, Burning Bush Scientific Name: Kochia scoparia (L.) chrad. Sudden death may result if weed is high in nitrates. Brown colored mucous membranes and blood are typical of nitrate poisoning. Also severe difficulty in breathing, severe depression, blindness, incoordination, kidney and liver failure.	nitrates
Common Name: Foxglove Scientific Name: Digitalis purpurea Most affected: cats, cattle, dogs, goats, horses, humans Part: flowers, leaves, seeds	3 cardiac or steroid glycosides
Common Name Ground Ivy, Creeping Charlie Scientific Name: Glechoma spp. Most affected: horses, goats. Has a bitter taste Part: leaves, stems	volatile, aromatic oil
Common Name: Groundsels, Senecio, and Ragworts Scientific Name: Senecio spp aimless wandering, head-pressing, excitement or disorientation Most affected: horse, cattle, goats, sheep, human Part: Leaves	4 pjacobine, seneciphylline
Common Name: Heavenly Bamboo Scientific Name:. Nandina domestica Clinical signs: cyanosis, pale mucous membranes, slow heartrate, vomiting, diarrhea, respiratory congestion, seizures, semi-coma, respiratory failure, death.	cyanogenic glycosides
Common Name: Henbane, Christmas Rose Scientific Name: Helleborus niger Most affected: humans Part: All	rotoanemonin
Common Name: Horsetails, buckeyes Scientific Name: Equisetum arvense Vomiting and abdominal pain. Weight loss, and diarrhea. Weakness and incoordination the of hind legs become progresses to recumbencing. Animals continue to eat relatively well.	unknown
Common Name: Hyacinth Scientific Name: Hyacinth orientalis Hyacinth poisoning is very rare. Clinical signs usually include digestive tract disorders such as colic, vomiting and diarrhea.	calcium oxalate raphides
Common Name: Hydrangea Scientific Name: Hydrangea macrophylla Affected animals may experience painful gastroenteritis, and diarrhea which may be bloody	cyanogenic glycoside hydrangin
Common Name: Irises Scientific Name: Iris spp. Most affected: cattle, humans, swine Part: rhizomes and rootstocks	3 irisin, iridin, or irisine
Common Name: Jack in the Pulpit Scientific Name: Arisaema spp. Most affected: humans Part: All	2 oxalate
Common Name: Jimsonweed, Downy Thornapple, Devil's Trumpet, Angel's Trumpet Scientific Name: Datura spp. Most affected: cattle, humans, horses, goats Part: flowers, leaves, seeds	4 atropine, scopalamine, and hyoscyamine
Common Name: Johnson Grass, Sorghum or Milo, Sudan Grass Scientific Name: Sorghum spp. Urinary irritation in horses. Toxicosis is associated with grazing of foliage, not with consumption of the seeds. Most affected: horses, cattle, goats Part: leaves, stems	4 dhurrin, nitrate
Common Name: Lamb's Quarters Scientific Name: Chenopodium album dyspnea, sudden death, �muddy� mucous membranes, �brownish� appearance to blood. The iron in hemoglobin is oxidized from ferrous to ferric iron. This results in the formation of methemoglobin. Most affected: cattle, horses, humans, sheep, swin Part: The entire plant	nitrates
Common Name: Lantana, Red Sage, Yellow Sage, or West Indian Lantana Scientific Name: Lantana camara Most affected: cattle, dogs, goats, cats, humans, sheep Part: unripe, green berries	triterpenes
Common Name: Lily of the Valley Scientific Name: Convallaria majalis Most affected: cats, dogs, humans, goats Part: All	cardiac glycosides and saponins
Common Name: Locoweed Scientific Name: Astragalus and Oxytropis spp. Symptoms: ncoordination, hypermetria, Vision may be impaired, swainsonine poisoning occurs after 2 weeks or more of ingestion in cattle and horses. Most affected: horse,sheep, cattle Part: flowers, leaves, stems	selenium, nitro compounds, swainsonine
Common Name: Lupine Scientific Name: Lupinus spp. Most affected: cattle, goats Part: seeds	3 lupinine, anagyrine, sparteine, and hydroxylupanine
Common Name: Marajuana Scientific Name: Cannabis sativa Toxic effects are mainly in the central nervous system, repiratory system, and endocrine system. Affects the liver. Most affected: dogs, ferrets, cats, goats Part: all, flower stalks	2 resins, THC
Common Name: Milkweed Scientific Name: Asclepias tuberosa Clinical signs include profuse salivation, incoordination, violent seizures, bloating in ruminants and colic in horses. Early signs are followed by bradycardia or tachycardia, arrhythmias, hypotension and hypothermia. Death may occur from 1-3 days. Most affected: Cattle, sheep, goats, horses and poultry are all sensitive to the effects of milkweed. Consuming the toxic plant in the amount of 2% of body weight can cause symptoms. Part: leaves	2 desgluco- syrioside, syrioside
Common Name: Mistletoe Scientific Name: Viscum album, Phoradendron spp Clinical signs: gastrointestinal disorders, cardiovascular collapse, dyspnea, bradycardia, erratic behavior, (hallucinogenic in humans). Most affected: Dogs and cats, humans	toxalbumin, pharatoxin viscumin
Common Name: Mountain laurel Scientific Name: Kalmia latifolia Salivation and a burning sensation in the mouth are followed by emesis, diarrhea, muscular weakness and impaired vision. Bradycardia, hypotension (caused by vasodilation) and atrioventricular block are serious cardiovascular effects that may be lethal. Most affected: Sheep, goats and cattle Part: the plant, especially the leaves
Common Name: Nightshade, Black Nightshade, Horse Nettle, Buffalo Bur Scientific Name: Solanum spp Most affected: cattle, humans, rodents, sheep, horses, goats Part: Leaves, immature fruit	2 soladulcidine, solanine
Common Name: Oak Trees Scientific Name: Quercus spp. Most affected: horses, cattle Part: acorns, young leaves	4 gallotannins, quercitrin, and quercitin
Common Name: Oleander Scientific Name: Nerium oleander Most affected: horses, cattle, sheep, dogs, humans, goats Part: all, leaves, stems	4 nerioside, oleandroside, saponins, cardiac glycosides
Common Name: Peace Lily Scientific Name:. Spathiphyllum Most affected: Dogs and cats Clinical signs: oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, difficulty in swallowing	calcium oxalate crystals
Common Name: Philodendron Scientific Name:. Monstera deliciosa Most affected: Dogs and Cats Clinical signs: oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, difficulty in swallowing	calcium oxalate crystals
Common Name: Pigweed, Careless weed Scientific Name: Amaranthus spp Most affected: cattle, swine Part: leaves	4 nitrate
Common Name: Poinsettia, Spurges, Snow on the Mountain Scientific Name: Euphorbia spp. Most affected: cattle, horses, humans, sheep Part: leaves, stems and sap	2 phorbol esters
Common Name: Poison Hemlock Scientific Name: Conium maculatum clinical course is rapid, and animals may be found dead or die within a few hours. Initial consumption may cause a burning sensation in the mouth, salivation, emesis and diarrhea. Rapidly developing neurologic signs include muscle tremors, muscular weakness, dim vision, convulsions and coma. Death results from respiratory failure. It contains highly poisonous toxic alkaloids. Easily mistaken for parsley. Poison hemlock is often found on poorly drained soils. Most affected: livestock and humans Part: All	4 coniine
Common Name: Poison ivy Scientific Name: Toxicodendron radicans Most affected: humans Parts: the leaves	2
Common Name: Poison oak Scientific Name: Toxicodendron diversiloba Most affected: humans	4
Common Name: Poison sumac Scientific Name: Rhus vernix Most affected: Susceptible humans exhibit intense itching with inflammation and the formation of blisters at the areas of contact. Animals are rarely affected Part: Leaves
Common Name: Pokeweed Scientific Name: Phytolacca americana Most affected: cattle, sheep, humans, turkeys, swine, horses Part: All	2 phytolaccatoxin, phytolaccigenin
Common Name: Poppies Scientific Name: Papaver spp Eating the unripe fruit produces stupor, coma, shallow and slow breathing.	2 sanguinarine
Common Name: Poppy, Opium Poppy, Mexican Poppy Scientific Name: Argemone mexicana Most affected: All Part: goats	2 sanguinarine
Common Name: Rhododendron Scientific Name: Rhododendron spp. Animals initially have clinical signs of digestive disturbances, anorexia, excessive salivation, vomiting, colic, and frequent defecation. In severe cases, muscle weakness, bradycardia, cardiac arrhythmia, weakness, paralysis, and coma may precede death.	3 Andromedotoxins (grayanotoxins)
Common Name: Rhubarb Scientific Name: Rheum rhaponticum Consumption of the rhubarb leaf results in gastroenteritis, cramps. nausea, vomiting, weakness, respiratory difficulties, irritation of the mouth and throat, poor clotting of the blood, internal hemorrhaging, coma, and death.	3 anthraquinones, oxalate
Common Name: Sago Palm Scientific Name:. Cycas and Zamia species BR>Clinical signs: vomiting, melena, icterus, increased thirst, hemorrhagic gastroenteritis, bruising, coagulopathy, liver damage, liver failure, death.	cycasin
Common Name: Snow-on-the-mountain Scientific Name: Euphorbia marginata The specific toxin has not been defined, but is probably a diterpene ester(s) in the milky sap. These irritants cause mouth irritation, salivation, diarrhea, and death may result from ingestion.	phorbol esters
Common Name: St. Johns Wort, Klamath Weed Scientific Name: Hypericum perforatum Most affected: horses, sheep, goats Parts: All	2 hypericum
Common Name: Star of Bethlehem Scientific Name: Ornithogalum umbellatum Most affected: humans Parts: bulbs, flowers, all	1 convallatoxin, convalloside
Common Name: Stinging Nettle Scientific Name: Urtica spp. Most affected: dogs, humans Part: hairs	acetylcholine, histamine, 5-hydroxy- tryptamine
Common Name: Vetch Scientific Name:. Vicia spp. Most affected: chickens, horses, humans Poisonous Parts: seeds	beta-cyano-L-alanine
Common Name: Water Hemlock or Cowbane Scientific Name: Cicuta spp Most affected: All Part: Roots	4 pallcicutoxin
Common Name: Wild Cherries, Black Cherry, Bitter Cherry, Choke Cherry, Pin Cherry Scientific Name: Prunus spp. Most affected: horses, cattle, moose, sheep, swine, goats Part: seeds, leaves	4 amygdalin, prunasin
Common Name: Wisteria Scientific Name: Wisteria spp. Most affected: humans Parts: all, flowers, seeds, leaves	1 wistarine
Common Name: Monkshood, Aconite, or Wolfsbane Scientific Name: Aconitum spp. Most affected: humans, cattle, goats Parts: leaves, roots, all	1 aconitine
Common Name: Yellow Star Thistle Scientific Name: Centaurea solstitialis Most affected: horse Parts: All	1
Common Name: Yellow jessamine Scientific Name: Gelsemium sempervirens Most affected: Livestock are affected. Humans have been known to be poisoned from sucking the nectar from the flowers or from eating honey made from these flowers. Part: any parts of the plant	gelsemine
Common Name: Yew Scientific Name: Taxus cuspidata Clinical signs: trembling, muscle weakness, dyspnea, and collapse are cardinal clinical signs. Also arrhythmia, bradycardia, and diastolic heart block appear cause of death. Most affected: All Part: leaves	4 taxine
Common Name: Yucca Scientific Name:.Yucca sp. Clinical signs: vomiting, depression, diarrhea, drooling, seizures	vomiting, depression, diarrhea, drooling, seizures

POISONOUS PLANTS INDEX

Toxicity Class

1. Dermatitis: The juice, sap, or thorns of these plants may cause a skin rash or irritation. Wash the affected area of skin with soap and water as soon as possible after contact. The rashes may be very serious and painful. Call the Poison Control Center or your doctor if symptoms appear following contact with the plants.

2. Oxalates: The juice or sap of these plants contains oxalate crystals. These needle-shaped crystals can irritate the skin, mouth, tongue, and throat, resulting in throat swelling, breathing difficulties, burning pain, and stomach upset. Call the Poison Control Center or your doctor if any of these symptoms appear after ingestion of plants.

3. Minor Toxicity: Ingestion of these plants may cause minor illnesses such as vomiting or diarrhea. If ingested, call the Poison Control Center or your doctor.

4. Major Toxicity: These plants may cause serious illness or death. If ingested, immediately call the Poison Control Center or your doctor.

Aconite
Alfalfa or Lucerne
Alsike Clover
Angel's Trumpet
Arrowgrass
Baneberry
Belladonna
Birdsfoot Trefoil
Black Locust
Bleeding Heart
Bloodroot
Bouncing Bet
Bracken Fern
Buckeye
Buckwheat
Buffalo Bur
Buttercups or Crowfoot
Castor Bean
Celandine
Christmas Rose
Cocklebur
Corn Cockle
Corn Lily, False Hellbore
Cow Cockle
Creeping Charlie
Crown Vetch
Cherries, Black, Bitter, Choke, and Pin
Daphne
Death Angel Mushrooms
Death Camas
Death Cap Mushrooms
Destroying Angels

Delphiniums
Devil's Trumpet
Dock
Dogbane
Doll's-eyes
Downy Thornapple
Drooping Leucothoe
Dutchman's Breeches
Elderberry
Ergot
Fly Agaric
Fiddleneck
Flax
Foxglove
Golden Chain or Laburnum
Great Lobelia, Cardinal Flower, and Indian Tobacco
Ground Ivy, Creeping Charlie, and Gill-over-the-Ground
Groundsels
Halogeton
Henbane
Horsebrush
Horse Chestnut
Horse Nettle
Horsetail
Irises
Jack-in-the-Pulpit
Japanese Pieris
Jessamine
Jimsonweed
Johnson Grass
Klamath Weed

Lamb's Quarters
Lantana, Red Sage, Yellow Sage, West Indian Lantana
Larkspurs
Lily-of-the-Valley
Locoweed
Lupine
Marijuana
Marsh Marigold or Cowslip
Mayapple and Mandrake
Mexican Poppy
Milkweed
Milo
Monkey Agaric Mushrooms
Monkshood
Moonseed
Mountain Fetterbush
Nightshade, Black Nightshade or Deadly Nightshade
Oak Trees
Oleander
Onions and Chives
Panther Cap Mushrooms
Pigweed
Poison Hemlock
Poison ivy
Poison oak
Poison Sumac
Potato
Poinsettia
Pokeweed
Ponderosa Pine
Poppies and Opium Poppy

Prickly Poppy
Ragworts
Red Clover
Rhubarb
Rosary Pea
Saint Johns Wort
Senecio
Sensitive Fern
Sierra Laurel
Skunk Cabbage
Squirrel Corn
Snow-on-the-Mountain
Sorghum
Spurges
Star-of-Bethlehem
Stinging Nettle
Sudan Grass
Sweet clover
Sweet Pea, Tangier Pea, Everlasting Pea, Caley Pea and Singletary Pea
Tobacco and Tree Tobacco
Tung Oil Tree
Vetch, Hairy Vetch, Narrow-leaved Vetch, Purple Vetch and Broad Beans
Water Hemlock or Cowbane
White Clover
White Snakeroot
Wisteria
Wolfsbane
Yellow Star Thistle
Yew

List of Scientific and Common Name Equivalents
Abrus precatorius - Rosary Pea Aconitum spp. - Monkshood, Aconite, or Wolfsbane Actaea spp. - Baneberry, Dolls Eyes, White Cohosh, Snakeberry Aesculus spp. - Horse Chestnut, Buckeye Agrostemma githago - Corn Cockle Aleurites fordii - Tung Oil Tree Allium spp. - Commercial Onions, Wild Onions, Swamp Onions, and Chives Amanita spp. - Monkey Agaric, Panther Cap, Death Cap, and Death Angel Mushrooms A. muscaria - Fly Agaric A. pantherina - Panther A. verna - Destroying Angels Amaranthus spp. - Pigweed Amsinckia intermedia - Fiddleneck Apocynum spp. - Dogbane Argemone mexicana - Prickly Poppy or Mexican Poppy Arisaema spp. - Jack in the Pulpit Asclepias spp. - Milkweed Astragalus and Oxytropis spp. - Locoweed Atropa belladonna - Belladonna or Deadly Nightshade Brassica spp, - Rape, Cabbage, Turnips, Broccoli, Mustard Caltha palustris - Marsh Marigold or Cowslip Cannabis sativa - Marijuana Centaurea solstitialis - Yellow Star Thistle Chelidonium majus - Celandine Chenopodium album - Lamb's Quarters Cicuta spp. - Water Hemlock or Cowbane Claviceps spp. - Ergot Conium maculatum - Poison Hemlock Coronilla varia - Crown Vetch Convallaria majalis - Lily of the Valley Daphne spp. - Daphne Datura spp. - Jimsonweed, Downy Thornapple, Devil's Trumpet, Angel's Trumpet Delphinium spp. -Delphiniums and Larkspurs Dicentra spp. - Bleeding Heart, Squirrel Corn, Dutchman's Breeches	Digitalis purpurea - Foxglove Equisetum arvense and other spp. - Horsetail Eupatorium rugosum - White Snakeroot Euphorbia spp. - Poinsettia, Spurges, Snow on the Mountain Fagoypyrum esculentum - Buckwheat Festuca arundinacea - Tall Fescue Gelsemium sempervirens - Jessamine Glechoma spp. - Ground Ivy, Creeping Charlie, and Gill over the Ground Halogeton glomeratus - Halogeton Helleborus niger - Christmas Rose Hyoscyanamus niger - Henbane Hypericum perforatum - St. Johns Wort, Klamath Weed Iris spp. - Irises Laburnum anagyroides - Golden Chain or Laburnum Lantana camara - Lantana, Red Sage, Yellow Sage, or West Indian Lantana Lathyrus spp. - Sweet Pea, Tangier Pea, Everlasting Pea, Caley Pea and Singletary Pea Leucothoe axillaris and Leucothoe davisiae - Drooping Leucothoe and Sierra Laurel Linum usitatissimum - Flax Lobelia spp. - Great Lobelia, Cardinal Flower, and Indian Tobacco Lotus corniculatus - Birdsfoot Trefoil Lupinus spp. - Lupine Medicago sativa - Alfalfa or Lucerne Metilotus alba and Melilotus officinalis - White and Yellow Sweetclover Menispermum canadense - Moonseed Nerium oleander - Oleander Nicotiana spp. - Tobacco and Tree Tobacco Onoclea sensibilis - Sensitive Fern Ornithogalum umbellatum -Star of Bethlehem Papaver spp. - Various Poppies including Opium Poppy Phytolacca americana - Pokeweed Pieris japonica and other spp. - Japanese Pieris, Mountain Fetterbrush Pinus ponderosa - Ponderosa Pine Podophyllum peltatum - Mayapple and Mandrake	Prunus spp. - Wild Cherries, Black Cherry, Bitter Cherry, Choke Cherry, Pin Cherry Pteridium aquilinium - Bracken Fern Quercus spp. - Oak Trees Ranunculus spp. - Buttercups or Crowfoot Rheum rhaponticum - Rhubarb Ricinus communis - Castor Bean Robinia pseudoacacia - Black Locust Rumex spp. - Dock Sambucus canadensis - Elderberry Sanquinaria canadensis - Bloodroot Saponaria spp. - Bouncing Bet and Cow Cockle Senecio spp. - Senecio, Groundsels, and Ragworts Solanum spp. - Common Nightshade, Black Nightshade, Horse Nettle,Buffalo Bur, Potato Sorghum spp. - Sorghum or Milo, Sudan Grass, and Johnson Grass Symplocarpus foetidus - Eastern Skunk Cabbage Taxus cuspidata - Yew Tetradymia spp. - Horsebrush Toxicodendron diversiloba -Poison oak Toxicodendron radicans -Poison ivy Toxicodendron vernix -Poison Sumac Trifolium spp.-Alsike Clover, Red Clover, White Clover Triglochin maritima - Arrowgrass Urtica spp. - Stinging Nettle Vicia spp. - Common Vetch, Hairy Vetch, Narrow leaved Vetch, Purple Vetch and Broad Beans Veratrum californicum - Corn Lily, False Hellbore Wisteria spp. - Wisteria Xanthium strumarium - Cocklebur Zigadenus spp. - Death Camas Acer rubrum - Red maple, Swamp maple, Soft maple Acer saccharum - Sugar maple, Rock maple, Hard maple Acer saccharinum - Silver maple, Soft maple, White maple