Leaf-lamina 1·5–4·5 (6) × 1·5–4·5 (6) cm., deltoid to broadly or very broadly ovate, apex subacute to obtuse, margin crenate, base cordate, almost unlobed to shallowly 3-or 5 (or 7)-lobed, membranous; petiole 1–3 cm. long; stipules 2–4 (7) × 1–3 (4) mm., lanceolate to ovate or deltoid, acute, often 2-fid, membranous; petioles 1–3 cm. long, 0·5–2·5 cm. long.
Inflorescence a 1–2 (3)-flowered pseudumbel; peduncle leaf-opposed or in the axil of the smaller of 2 apparently opposite leaves, bearing a terminal pseudumbel of 1–2 (3) flowers; bracts 3–6, 1·5–2 × 0·5–0·8 mm., lanceolate or narrowly deltate, acute, membranous; free part of pedicel (3) 5–12 mm., long.
Decumbent annual herb; primary stem: ± ascending, branched; branches up to 1 m. long, weak and straggling; internodes 2–6 (10) cm. long; vegetative parts, peduncles and pedicels glandular and pubescent; hairs patent or ± appressed on the leaves; glands short-stalked to sessile.
Petals 5 (4) or absent (in N. Nyasaland and Tanganyika), pink, 1·7–2 (2·5) × 0·5–0·7 mm., 2 posterior ones asymmetrically spathulate; 3 (2) anterior ones narrowly obovate, unguiculate, fertile filaments 2–3 (5), 1·8–2 mm. long.
Stamens with sterile filaments (staminodes) (5) 7–8, 0·9–1·2 mm. long, all 9 or 10 connate at the base for 0·5 mm.; anthers 0·3–0·5 × 0·3–0·5 mm.
Ovary often only 3–4-locular by abortion, with basal part tomentose; rostrum pubescent; style 0·2 mm. long; stigma 0·5 mm. long.
Sepals 2·5–4 × 0·5–2·5 mm., narrowly oblong to lanceolate, acute, ± patent, pilose and glandular.
Fruit 0·7–1·2 cm. long; cocci 2–8 × 1–2 mm.
Seeds 1·8–2·4 × 0·8–1·2 mm., pale brown.
Spur 1–2 (3) mm. long.