Plants Poisonous to Livestock

Plants Poisonous to Livestock Scientific Name

Common Name(s)

Species Parts Most Poisono Primary Poison(s) Often us Affected

Red maple, Swamp horses maple, Soft maple

leaves

gallic acid

Sugar maple, Rock horses maple, Hard maple

leaves

gallic acid

Silver maple, Soft horses maple, White maple

leaves

gallic acid

Commercial cattle, Onions, Wild horses, Onions, Swamp children Onions, and Chives

bulbs, leaves

SMCO

seeds

intermedine, lycopsamine

Fiddleneck

horses, swine, cattle

Dogbane

horses, cattle, humans, rhizome apocynamarin sheep, cats, dogs, goats

Lambs Quarters

cattle, horses, humans, sheep, swine

all

nitrates

Jimsonweed, Downy Thornapple, Devils Trumpet, Angels Trumpet

cattle, humans, horses, goats

Foxglove

cats, cattle, flowers, dogs, goats, cardiac or steroid leaves, horses, glycosides seeds humans

White Snakeroot

cattle, dogs, goats, horses, all humans, rabbits, sheep

flowers, atropine, leaves, scopalamine, and seeds hyoscyamine

tremetone

cattle, Poinsettia, Spurges, horses, Snow on the humans, Mountain sheep

leaves, stems and sap

phorbol esters

Buckwheat

horses, goats

Tall Fescue

cattle, horses

all

diaziphenanthrene, pyrrolizidine, and ergot

Jessamine

horses, goats

all

gelsemine

Ground Ivy, Creeping Charlie, and Gill over the Ground

horses, goats

St. Johns Wort, Klamath Weed

horses, all sheep, goats

Golden Chain or Laburnum

cattle, dogs, horses, pods, cytisine humans, seeds, all swine

leaves, stems

unknown

hypericum

horses, Sweet Pea, Tangier rodents, Pea, Everlasting turkeys, Pea, Caley Pea and sheep, Singletary Pea humans

seeds

DABA, ODAP, amine, phenol, glycoside

White and Yellow Sweetclover

horses, cattle, sheep

stem

dicoumarol

Oleander

horses, cattle, sheep, dogs, humans, goats

all, leaves, stems

nerioside, oleandroside, saponins, cardiac glycosides

Pokeweed

cattle, sheep, humans, turkeys, swine, horses

all

phytolaccatoxin, phytolaccigenin

horses, cattle, Wild Cherries, Black Cherry, Bitter moose, sheep, Cherry, Choke Cherry, Pin Cherry swine, goats

seeds, leaves

amygdalin, prunasin

Buttercups or Crowfoot

cattle, goats, horses

all

protoanemonin

Rhubarb

goats, humans, swine, horses

leaves

anthraquinones, oxalate

Black Locust

horses, cattle, bark, humans, leaves, poultry, seeds sheep, goats

robin, phasin

Common Nightshade, Black Nightshade, Horse Nettle, Buffalo Bur, Potato

cattle, humans, rodents, sheep, horses, goats

Sorghum or Milo, Sudan Grass, and Johnson Grass

horses, leaves, cattle, goats stems

Common Vetch, Hairy Vetch, chickens, Narrow leaved horses, Vetch, Purple Vetch humans and Broad Beans

leaves, soladulcidine,solanin immatur e e fruit

seeds

dhurrin, nitrate

beta-cyano-Lalanine