sticktight

(noun) any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing. Synonyms: bur marigold, burr marigold, beggar-ticks, beggar's-ticks.

(noun) parasitic on especially the heads of chickens. Synonyms: sticktight flea, Echidnophaga gallinacea.