Amaranthus macrocarpus var. macrocarpus

Prostrate to decumbent, glabrous annual. Stems to c. 40 cm long. Leaves long-petiolate, elliptic to obovate, lamina mostly 8–20 mm long, 4–15 mm wide; apex usually emarginate, sometimes shortly mucronate. Flowers unisexual, in axillary clusters c. 8 mm diam.; bracts and bracteoles elliptic, to c. 1 mm long, sometimes rudimentary; tepals 3 (occasionally 4 in some flowers on same plant), oblanceolate, 1.5–2.5 mm long, acute; stamens 3. Utricle indehiscent, narrowly ovoid, c. twice as long as perianth, irregularly puckered, at least toward base, blackish; seed elliptic, biconvex, c. 1 mm long.  Flowers Dec.–Mar.