Monographs Details: Rhamnus
Authority: Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Description:Genus Description - Fls 4–5-merous, perfect or unisexual, the staminate with vestigial pistil, the pistillate with shorter or smaller stamens; pet lacking (in one sp.) or present, small, often obcordate with the sides folded about the stamen; ovary 2–4-locular; fr a drupe with 2–4 1-seeded stones; shrubs or trees with alternate or opposite, pinnately veined, usually toothed lvs and green or greenish-white fls solitary or umbellate in the axils of a few of the lower lvs of the current season. 100, widespread.