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A slender scrambling annual herb. The leaves have 3-6 pairs of leaflets. They are usually alternate. They are narrowly oblong and 5-20 mm long by 1-3 mm wide. They have a very small sharp tip. The stalk of the leaf has a tendril at the end. There are 1 or 2 flowers in a group. The flower stalks are 2-4 cm long. The petals are pale blue and there is a purple spot on the keel. The pods are oblong and 10-15 mm long by 3.5 mm wide. There are usually 4 seeds. The pods are smooth and light brown. The seeds are almost round and 2 mm across. The seeds are brown.
Annual erect or climbing herb, 0.1-0.6 m high; stems slender, profusely branched, dense, glabrous or appressed-hairy. Leaves 10-45 mm long, rachis terminating in tendril. Leaflets 6-12, linear to narrowly-elliptic, 3-20 x 1-2 mm, apex mucronulate. Stipules 1-2 mm long, entire. Inflorescences of 1-3-flowered racemes; peduncle as long as leaves. Flowers pale blue, ± 5 mm long. Calyx 2-3 mm long. Flowering time Dec.? Pod oblong, 8-16 x 2-5 mm, slightly constricted between seeds, light brown, glabrescent. Seeds 3 or 4, globose, ± 2 mm in diam.
