Rockweed

microphylla: small-leaved

Erect or procumbent, usually mat-forming, annual or short-lived perennial, herb, up to 30 cm. Stems slightly fleshy. Stipules up to 1 mm. Leaves of a pair very unequal in size: petiole 0.5-6 mm; lamina 1-15 × 0.5-4 mm, usually obovate, smooth and glabrous; apex rounded; margin entire. Inflorescence a small pedunculate to subsessile cymose cluster, 1-2 together in the leaf axils. Achene 0.5-0.8 mm, obovoid, brown, smooth.

Occasional

Probably native in tropical Central America, widely naturalised in subtropical and tropical areas of the world.