Vines perennial, herbaceous. Stems to 1 m, shallowly longitudinally 5-or 6-grooved, sparsely pubescent. Leaves usually ternate, sometimes pinnate, 5-foliolate or simple; petiole 4--8 cm; leaflet blades ovate, narrowly ovate, or broadly lanceolate, 3--7 × 1.5--5 cm, papery, both surfaces sparsely pubescent on veins or adaxially glabrous, base rounded, truncate, broadly cuneate, or subcordate, margin entire, apex acuminate to acute; basal veins abaxially ± prominent. Flowers solitary, terminal, 7--12 cm in diam. Pedicel robust, 3.5--10 cm, pubescent. Sepals 5, 6, or 8, white, obovate to elliptic, 3.5--6 × 1.5--3.5 cm, abaxially appressed pubescent to puberulous along central basal veins and velutinous along lateral basal veins, adaxially glabrous, margin glabrous. Stamens 1.2--2 cm, glabrous; anthers linear, 6--8 mm, apex obtuse or apiculate. Ovaries pubescent. Style ca. 9 mm, densely villous from base to middle. Achenes broadly ovate, 3.5--5 × 3--4.5 mm, appressed pubescent; persistent style 3--3.8 cm, yellow plumose. Fl. May--Jun, fr. Jun--Jul.
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A vigorous climbing vine. The leaves are divided into leaflets along the stalk. There are 3-5 leaflets and they are 10 cm long. They flowers can be white, mauve or blue. They occur singly at the tips of the stems.
Can be grown by cuttings or seedlings. Seeds needs soaking.
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