The Collaborative International Dictionary
Beggar's lice
Beggar's lice \Beg"gar's lice`\ (Bot.) The prickly fruit or seed of certain plants (as some species of Echinospermum and Cynoglossum) which cling to the clothing of those who brush by them.
WordNet
beggar's lice
n. Eurasian and North American plants having small prickly nutlets that stick to clothing [syn: beggar lice]
any of various tropical and subtropical plants having trifoliate leaves and rough sticky pod sections or loments [syn: tick trefoil, beggar lice]
Usage examples of "beggar's lice".
He follows down into warmth, into darkness, one question in the back of his mind, niggling as beggar's lice against bare skin.