Crassula umbellata Thunb.

Annuals with spreading branches 20-40 mm long, but sometimes internodes not elongating and plant only 2-6 mm high, glabrous. Leaves sessile to shortly petiolate; lamina rhombic to triangular or obovate, 2-4 x 2-4 mm, obtuse, abruptly constricted towards the base, covered with papillae on upper surface, dorsiventrally flattened and often convex above, green to reddish brown, petiole up to 2 mm long. Inflorescence a thyrse often with only one dichasium, with 4-merous flowers sessile at first and pedicel elongating when fruiting. Calyx: lobes broadly oblong, 0.6-1 mm long, covered with papillae towards apex, fleshy, green to brown. Corolla cup-shaped, scarcely fused basally, cream often tinged red; lobes ovate, rarely lanceolate, c. 1 mm long, bluntly acute, erect to somewhat recurved. Stamens with yellow anthers. Squamae narrowly oblong-cuneate, 0.3-0.4 x 0.1-0.2 mm, truncate or rounded, gradually constricted downwards, almost membranous, white. Seeds 6-8, released through apical pore of follicles.