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.