Pigweed
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Pigweed
Names: Amaranthus retroflexus, amaranth
Description: Annual that grows 30-150 cm. Stem is red and usually hairy with many branches. Leaves are oval and alternate. Flowers greenish and grow in dense bracts. Fruit is a small, shiny, black seed
Concern level: Only during drought conditions, unpalatable. Can be incorporated into hay.
Toxic parts: Leaves and stems
Symptoms: Tremors, lack of coordination, abortion of fetus in pregnant mares, knuckling of fetlock joints, coma, death.
Danger: Contains oxalates and nitrates which increase potassium levels, and cause kidney failure. Can be fatal.
More information: USDA
Poisonous plants by letter
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Looking for a plant but don't know the name? Try the toxic plant identifier
This information is for reference only, if you think your horse has eaten something toxic, call your vet right away.
