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Annual herb, usually unbranched, to c. 1 m tall; stems with short, crisped and sometimes long, spreading hairs. Leaves oblong in outline; stipules acicular, to 7 mm long; petiole c. 5 mm long, with cushion-like gland 2-4 mm long and 1-1.5 mm wide; rachis 4-8 cm long; leaflets 7-15 pairs, narrowly oblong, 12-25 mm long, 2-6 mm wide, pubescent; apex obtuse, mucronate; midrib ±central. Inflorescence supra-axillary, 3-8-flowered; pedicels 2-5 mm long. Sepals shorter than petals; apex obtuse. Petals oblong, 3.5-4.5 mm long, subequal. Stamens 8-10; anthers alternately long and short, 2-3 mm long. Ovary villous. Pod 1.5-5 cm long, 4-5 mm wide, finely pubescent.
Inflorescences supra-axillary, an additional axillary one sometimes arising later, 4–7-flowered; pedicels 1.5–3 mm long, apparently not elongating in fruit.
A woody herb or small shrub. It keeps growing from year to year. It is about 1.5 m high.
Upright herb, sometimes woody towards the base, probably usually annual, 30–100 cm tall.
Stem smooth, pubescent with short curled and long straight yellowish hairs.
Seeds dark brown, c.2.5 × 1.8 mm, rhomboid, flattened.
Pod blackish, 2–2.5 × 0.4–0.5 cm, pubescent.
Flowers small; petals 3.5–4.5 × 1.5–3.5 mm.
Ovary densely appressed-white-pubescent.
Stamens 10.
