Annual herb, in the early stages erect and tufted, usually becoming diffuse and straggling, up to 60 cm. long. Root slender. Leaves longly petiolate, occasionally the petiolule and rhachis prehensile ; lamina 2–3-pinnatisect, glabrous ; leaflets oblong-lanceolate to linear-lanceolate, apices acute to apiculate. Racemes (7–)11–15(–17)-flowered ; pedicels erect and spreading in fruit, swollen beneath the fruit ; bracts linear, acute, varying from nearly equal to longer than, the pedicel. Flowers 5–6.5 mm. long, pink with a darker pink to purple tip. Sepals small, ovate-acuminate, irregularly dentate, white to pale pink. Upper petal ± winged, sometimes flexed at outer edge, keeled at apex, also having a short basal spur ; the inner petals nearly straight, spathulate, united at their apex, and like the other petals darker at their tips ; these 2 petals are also fluted, the middle fold being the largest, with a single smaller fold either side; lower petal ± spathulate with a small apical keel, free. Stamens united into 2 bundles of 3 with the upper unit bearing a small basal nectary, which hangs in and is partially attached to the spur of the upper petal. Fruit subrotund, obtuse to acute, ± rugose when dry, apiculate and slightly keeled with 2 poorly defined apical pits, only seen when mature and dry. Fig. 2.
