MONTANA Thunberg, 1778 (engl./ fr.)
Synonym : Purgosea montana (Thunberg) G.Don (1834)
Type : Thunberg 7767, on top of mountain in Bokveld, Cape.
Section Rosulares
Distribution : SA
Description by Tölken, 1985 :
Perennials up to 12 cm high when flowering, usually forming cushions of many rosettes with 4-ranked leaves, old leaves remaining attached to stem.
Leaves obovate, broadly elliptic to ovate, (4-) 10 - 35 x (4-) 6 - 20 (-25) mm, acute, dorsiventrally flattened, scarcely fleshy, glabrous except for dense row of marginal cilia, green to brown, often distinctly spotted.
Inflorescences varying from a flat-topped to a spike-like thyrse with one to several dichasia with many flowers sessile or almost so, with distinct peduncle 1 - 8 (-10) cm long.
Flowers : Calyx : Sepals triangular, 2 - 3 mm long, acute and usually drawn into a terminal point, glabrous except for marginal cilia, fleshy, green, corolla tubular, fused basally for up to 0.5 mm, white often tinged pink, petals oblong, 3 - 5.5 mm long, obtuse or acute, recurved to reflexed, stamens with black anthers, squamae oblong-cuneate, rarely oblong, 0.6 - 0.8 x (0.3-) 0.5 - 0.6 mm, entire to emarginate, more or less strongly constricted towards base, scarcely fleshy, yellow.
Three subspecies :
Crassula montana ssp. quadrangularis (Schönland) Tölken, 1975