Sand Shinnery Oak

1
Sand Shinnery Oak

• Low shrub, usually less than 3.
• Tannins (in particular gallotannin) are the
  principle poisons to Cattle, sheep and goats.

2
Golden Corydalis (Corydalis aurea)

• Golden corydalis is a spreading, yellow-flowered
  member of the poppy family.
• This plant reportedly contains up to 10
  alkaloids. Sheep relish this plant. Cattle and
  horses are much more resistant.

3
Mountain Pink (Centaurium beyrichii)

• Two species are found in West Texas, both annual
  or biennial plants.
• Toxic principle is unknown. Suspected to be
  poisonous to cattle, sheep and goats.

4
Mountain Pink

• Also called Rosita, has oblong to lanceolate
  leaves less than ½ inch wide, and up to 2 long.

5
Sacahuista (Nolina texana)

• Sacahuista is a perennial member of the lily
  family.
• Toxic agent saponin contained in the flowering
  buds, blooms and fruit. Sheep, goats and cattle
  avidly eat these plant parts.

6
Tobosagrass Ergot (Claviceps cinerea)

• Toxic fungus that parasitizes the ovary of the
  developing tobosagrass flower. Infection occurs
  when the grass flower opens.
• Toxic agent appears to be caused by a variety of
  alkaloids and In some, tremorgens.

7
Kleingrass (Panicum coloratum)

• Tufted perennial bunch grass with stems 20 to 50
  inches tall arising from firm, often knotty
  bases.
• If managed properly, kleingrass provides abundant
  good-quality forage for livestock. However,
  sheep and goats can develop severe
  photosensitization and liver damage.

8
Johnsongrass (Sorghum halepense)

• Vigorous, coarse, perennial grass with scaly root
  stalks that can reproduce by underground rhizomes
  and seed.
• Toxic agent caused by hydrocyanic acid (HCN)
  poisoning. All domestic animals are susceptible
  to HCN cattle are most susceptible.