Annual herb, erect with decumbent branches, up to 10 cm high; indumentum of curved hairs, the leaves mostly glabrescent. Leaves and alae often tinged deep purple, usually strongest on lower leaf surface. Leaves orbicular, depressed orbicular, very widely ovate or very widely obovate, 4–42 mm long, 3–48 mm wide; apex obtuse, rounded, truncate or emarginate, mucro 0.1–0.2 mm long; petiole to 2.5 mm long. Inflorescence supra-axillary, rarely axillary or leaf-opposed but often appearing terminal, rarely a solitary flower, usually a raceme to 25 mm long, not exceeding the leaves. Pedicel to 3 mm long. Alae antrorse to perpendicular, rarely deflexed in fruit (position), herbaceous, ovate, somewhat dimidiate, 4.2–7.8 mm long, 2.0–4.6 mm wide, glabrous or with curved hairs. Corolla purple; floral appendages fimbriate; upper petal claw 1–1.2 mm wide; keel petal with slight lateral pocket development or pocket absent. Stamens terminate at stigma, monadelphous; staminal flap 1–1.2 mm wide. Style hooked (horseshoe-shaped at apex), ± terete, with flat stigma along inner surface of hook. Capsule antrorse to perpendicular, ± aligned with alae, lacking wing (if present, wing up 0.45 mm wide, ± equal throughout), widely ovoid, 2.8–4.0 mm long, 3.2–4.3 mm wide; lobe apices rounded and separated. Seed ovoid, 2.7–3.2 mm long, 1.5–2.0 mm wide, with indumentum of white or ferruginous hairs often patchily distributed across testa. Aril head round, 0.5–0.6 mm long, white, with short hairs or glabrous. Aril appendages 3, linear, 1.2–2.5 mm long.
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