A plant genus in the family FABACEAE, subfamily Papilionaceae, order Fabales, subclass Rosidae. Many of the species are associated with poisoning of grazing animals. Some of the species are used medicinally.

Synonyms: Plant, Astragalus, Locoweeds, Wooly, Plants, Astragalus, Astragalus Plant, Milk Vetch, txid20400, Vetch, Milk, Vetchs, Milk, Astragalus Plants, Locoweed, Wooly, Wooly Locoweeds, Milk Vetchs, Wooly Locoweed