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Shrub or tree 1-10 m high, shrubs usually erect but sometimes scrambling or scandent, rarely a suffrutex up to 0,4 m high; young branchlets ± densely greyish or brown-pubescent or -puberulous and with many small orange glands or scales, some branchlets often coiled apically and tendril­like. Leaves: petiole 0,4-2 cm long; blade often wider than long, (1) 2-7 (8) cm long, (1,8) 2-10 cm wide, bilobed apically to about one-third to two-thirds of the way down, appressed-puberulous on lower surface or with spreading or ascending but non-appressed hairs; lobes elliptic to ovate or rounded. Stipules 3-5 mm long, 1-2 mm wide. Inflorescence 1-10-flowered, axillary, leaf-opposed or terminal and often crowded. Flower-buds: upper part (i.e. sepals) linear to linear-lanceolate in outline, 1,5-5 cm long before anthesis; hypanthium (1,5) 2-5,5 (6,5) cm long, finely longitudinally sulcate. Petals white throughout or sometimes the midrib pinkish basally, narrowly elliptic to ovate, 2,2-8,4 cm long, 0,6-2,2 (4,2) cm wide, with very crisped margins, glabrous above, the midrib pubescent outside and with many small orange glands or scales. Stamens: usually 5 fertile, occasionally 4 or 6 fertile, three longer, (3) 4,5-6 cm long, the other shorter two 3-5 cm long; fil