Oxalis laxa

Annual herb, roots fibrous. Tufted with stems 20–30 mm long and densely covered with leaf bases and appearing almost stemless, or stems evident and to 80 mm long, with or without side branches, not rooting at nodes. Stems sparsely hirsute, green or reddish at base; bulbils absent. Leaves cauline, alternate, 3-foliolate; leaflets subsessile, obcordate, 5–20 mm long, 5–20 mm wide, bilobed, green, upper leaf surface lightly covered with ascending to suberect erect, more densely hairy below, margins ciliate, sinus to c. one-quarter leaflet length, lobes obovate or suborbicular, apices rounded; petioles usually 4–10 cm long, with mostly spreading hairs; stipules conspicuous, to 9 mm long, widened at base, with scattered hairs on outer surface. Inflorescences axillary,  raceme-like, flowers usually 4–14 per peduncle usually held above leaf level; peduncles usually longer than leaves, with spreading hairs; pedicels often recurved. Sepals linear-lanceolate, 2–4 mm long, usually with red margins, and with two basal reddish-purple blotches on either side of sepal, sparsely hirsute. Petals 2.5–4 mm long, slightly longer than calyx, yellow. Styles short. Capsule oblong, 2.5–4 mm long, 1–2 mm diam., glabrous, seeds many per capsule; seeds 0.7–0.8 mm long, more or less spherical, apiculate at each end, transversely ribbed, ribs 5–7 (often broken), uniformly brown, dull. (Description based on Australian plants). Flowers Oct. (2 collections).