A woody trailing or climbing plant; younger stems pilose, glabrescent with age, longitudinally ribbed and furrowed. Leaves most often bipinnate or (rarely) pinnate with lateral leaflets more or less deeply trilobed; leaflets typically oblong with few rather irregular teeth, glabrous or glabrescent on upper surface, more or less pilose, especially on veins, on lower surface. Inflorescences loose, usually about 5–7 flowered; pedicels 1.5–6.5 cm. long; buds ellipsoid, rounded or acute. Sepals 1.3–2.5 cm. long, outer surface pale pink with scattered hairs except at margin or glabrescent, inner surface densely lanate. Fig. 1, (p. 4).