Transcript Toxic Plants - Veterinary medicine

Carelessweed, Pigweed (Amaranthus
spp.)
 Annual weedy herbs
vary in growth forms
from prostrate to
branching upright.
Toxic agent is nitrate.
 Animals with acute
nitrate poisoning are
often found dead with
no previous history of
illness.
Lechuguilla (Agave lechuguilla)
 Sheep and goats are
poisoned most often
under range conditions.
Cattle are poisoned
somewhat less
frequently, although this
plant can seriously
threaten cattle during
extended drought.
Horses are not known
to be poisoned.
Antelopehorn Milkweed (Asclepias
asperula)
 An erect-stemmed plant
growing to about 15”
tall. Abundant in
western Texas. Toxic
agents involved are
resinoids and
glycosides. Poisons all
livestock, especially
sheep.
Broad-leafed Milkweed (Asclepias
latifolia)
 Perennial, stout simple
stems and four or more
pairs of large thick
leaves, flowers are
greenish to white, giving
rise to two to four
smooth pods- July to
October. Poisons cattle
and goats, but more
often sheep.