1. Any of various tropical and subtropical plants having trifoliate leaves and rough sticky pod sections or loments
   "The tick trefoil's clingy seed pods easily attached to hikers' clothing, aiding in seed dispersal";
   - beggar lice, beggar's lice

Derived forms: tick trefoils

Type of: subshrub, suffrutex

Part of: Desmodium, genus Desmodium

Encyclopedia: Tick trefoil