COIX, or JOB'S TEARS, in botany, a genus of the monoecia triandria class. The calix of the male is a double-flowered glume, without any awn; the corolla is likewise a glume without an awn: the calix of the female is an open, oval, one-flowered glume; the stylus is bifid; and the seed is cartilaginous. There is but one species, viz. the latifolia, a native of Jamaica.