(used with a singular or plural verb) any of several plants belonging to the genus Trichostema, of the mint family, having blue to pink or, rarely, white flowers with long, curved filaments.
blue·curls also blue curls (blōō'kûrlz') pl.n.
(used with a sing. or pl. verb) Any of several North American plants of the genus Trichostema in the mint family, having clusters of mostly bluish or purplish flowers with long curved stamens.