Annual herb, 3–15 cm tall. Stems slender, usually pseudo-di- or trichotomously branched, apparently terminating in an inflorescence and growth continuing by lateral branches, usually exceeding the primary one, crisped-pubescent. Leaves alternate, petiolate (petiole 1–2 mm, crisped-pubescent), elliptic to broadly elliptic, 10–30(–40)≈(3–)5–12(–20) mm, subacute to rounded, base cuneate, glabrous or very minutely pubescent on both sides. Flowers whitish, pinkish or lilac, in much congested terminal racemes, often subglobose, 7–20 mm long, rachis crisped-pubescent; bracts lanceolate, 0.7–1 mm long, usually pubescent, persistent; bracteoles lanceolate, 0.5 mm long, usually pubescent, persistent; pedicels 1.5–3 mm, usually crisped-pubescent. Posterior sepal keel-shaped, 1.5–2≈0.5–1 mm, pubescent or glabrescent; wing sepals elliptic to suborbicular, (2–)2.5–3.5≈2–3 mm, pubescent towards the base; anterior sepals keel-shaped, 1–1.5 mm long, free. Upper petals obliquely obovate, constricted below the middle, 1.5–2.2≈0.7–1.5 mm, pubescent at the base; carina 2.5–3≈1.2–1.5 mm; crest 0.7–1 mm long, fimbriate. Stamens 8. Capsule elliptic to ovate in outline, 1.5–2.5≈1.5–2 mm, glabrous, narrowly winged (wing 0.2 mm wide). Seeds ovoid to subglobose, 1–1.8(–2)≈0.6–0.8(–1) mm, glabrous, rarely puberulous; caruncle subsymmetric, subglobose, 0.4–0.6 mm long, with the appendages hiding the caruncle, 0.4–0.5 mm long. Fig. 5: 7, p. 11.