Annual herb, prostrate or erect with decumbent branches, up to 15 cm high; indumentum of curved and straight hairs or occasionally with curved hairs only. Stems and leaves occasionally tinged maroon. Leaves of two general leaf shapes, linear, lanceolate or narrowly elliptic leaves, often on erect branches distally located, and elliptic or ovate leaves, usually proximal on decumbent branches, 2–46 mm long, 1.5–8 mm wide; apex acute or obtuse, mucro 0.2–0.5 mm long; petiole 0–1 mm long. Inflorescence supra-axillary or axillary, rarely a solitary flower or usually a raceme to 140 mm long, exceeding the leaves. Pedicel to 9 mm long. Alae perpendicular, becoming reflexed in fruit, herbaceous, lanceolate to oblanceolate or elliptic, dimidiate to falcate, 2.8–6.3 mm long, 1.0–2.9 mm wide, with scattered curved hairs or glabrous. Corolla purple; floral appendages fimbriate; upper petal claw 1.5 mm wide. Stamens terminate at stigma, monadelphous; staminal flap c. 0.5 mm wide. Style hooked (horseshoe-shaped at apex), in dried state style laterally compressed, with flat stigma along inner surface of hook. Capsule reflexed (apex of alae diverging at c. 45 from capsule), lacking wing, usually strongly asymmetrical, rhomboid or squarish, 2.5–4.5 mm long, 2.6–3.9 mm wide; lobes rounded, ± unequal. Seed ovoid–obloid, 2.0–3.6 mm long, 1.0–1.8 mm wide, with indumentum of fine white hairs over whole seed, and thicker recurved clearly hollow hairs adjacent to aril. Aril head round to hooked, 0.3–0.5 mm long, white, with fine short hairs or rarely glabrous. Aril appendages 3, linear, 0.75–2.10 mm long.
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