Bidens
noun
Bi·dens
ˈbī-ˌdenz
: a large genus of herbs (family Compositae) native to the warmer parts of both hemispheres that have divided or compound leaves and yellow flowers and the usually flattened achenes armed with barbed awns see beggar-ticks, bur marigold, spanish needle
Word History
Etymology
New Latin, from Latin, having two teeth, 2-pronged, from bi- bi- entry 1 + dent-, dens tooth