Monographs Details: Crassula
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 (3)4–5(–9)-merous; pet distinct or united only at base; stamens as many as and alternate with the pet, adnate to the base of the sep; carpels distinct or nearly so, the style short or even wanting, the stigma terminal; fr follicular; seeds (1–) several or many; succulent herbs or shrubs with thick, opposite lvs and mostly small fls. 250, cosmop.