Any of several tick trefoils, especially Desmodium tortuosum or D. purpureum, grown for forage or as a cover crop in subtropical and tropical regions.

• 山马蝗，扭荚山绿豆：几种山马蝗之一，尤指南美山马蝗或红紫山马蝗，用作草料或亚热带、热带地区的期间作物