Conyza
(from konis, dust; because it was supposed to have the power, when powdered and sprinkled, of driving away flies). Fleabane. ORD. Compositae. A rather extensive genus of stove, greenhouse, and hardy herbaceous plants, rarely shrubby. The involucre is campanulate, with from two to several series of linear or linear-lanceolate bracts; receptacle flat or convex, naked or foveolate; disk-florets yellow, those of the ray paler in colour. Leaves alternate, entire, toothed (rarely cut). There are about fifty species, most of which are confined to tropical and sub-tropical regions of both hemispheres. They are mainly of botanical interest only, and do not call for further mention in this work.