Erect much-branched bushy shrub, 0.3-3 m tall, lignotuberous. Branchlets densely dark brown tomentose or pubescent at flowering. Leaves almost linear to obovate-spathulate, sometimes falcate, 5-12.5 cm long, 4.5-30 mm wide, narrowly cuneate to attenuate at base, entire, acute or gradually to abruptly acuminate; longitudinal veins 3-5 above and below, usually more prominent below; secondary veins reticulate, conspicuous. Inflorescence solitary with 28-46 flowers; pedicels glabrous or appressed-pubescent with white or ferruginous hairs. Perianth cream-white. Pistil 4.5-6.5 mm long; gland present or absent. Fruit obliquely broadly elliptic to ovate, sometimes slightly curved, 2-3 cm long, 1.3-2.1 cm wide, not or obscurely beaked, apiculate. Seed obliquely broadly elliptic or obovate, 15-20 mm long; wing extending down both sides of body, more broadly and only partly or notched abaxially, blackish brown.
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