Vines woody. Branches terete or indistinctly 6-angulate, glabrous. Leaves ternate; petiole 3--7.5 cm; leaflet blades narrowly ovate to lanceolate, 3--7.5 × 1.2--2.6 cm, herbaceous, both surfaces glabrous or abaxially sparsely puberulous, base broadly cuneate to rounded, margin basally few denticulate or entire, apex attenuate; basal veins nearly flat. Cymes 1--3 borne together with several leaves from axillary buds of old branches, 1-flowered; peduncle 2--4 cm, sparsely puberulous; involucre cup-shaped, 4--7 mm, 2-lobed, outside sparsely puberulous. Flowers 1.6--1.8 cm in diam. Pedicel 2--12 mm. Sepals 4, greenish white, erect, oblong, 1.6--2 × 0.6--8.5 mm, abaxially velutinous, adaxially glabrous, apex ± obtuse. Stamens 0.7--2 cm, glabrous; anthers oblong, 3--3.8 mm, apex minutely apiculate. Ovaries pubescent. Style 1.4--2 cm densely villous. Achenes obovate to subrhombic, ca. 4 × 2 mm, pubescent; persistent style 4.5--5 cm, plumose. Fl. Nov--Dec, fr. Feb--Mar.
Home