Plants terrestrial, perennial. Stems erect, silvery in age, moderately branched, 30-50 cm. Leaf blades obovate, 20-70 mm, apex obtuse to retuse. Inflorescences compact, flowers 2 per node. Pedicels 8-12 mm. Flowers 4-merous; sepals (erect), triangular, 0.5 mm, apex acute; petals oblong-lanceolate, ca. 10 mm. Follicles erect, seed number not known, ovoid; old follicles erect, boat-shaped. Seeds not seen. Flowering Mar-Jun. Edges of lagoons, sand dunes, disturbed areas; 0-100 m; introduced; Calif.; s Africa. Crassula argentea is reported from Los Angeles and San Diego counties.