Erect bushy shrub, 1-3 m tall, non-sprouting. Branchlets tomentose, sometimes patchily glabrescent at flowering. Leaves narrowly elliptic to almost linear, flat, 2-11 cm long, 4-20 mm wide, narrowly cuneate at base, entire or slightly crenate, acute to acuminate; longitudinal veins 3 (-7); secondary veins reticulate, visible. Inflorescence solitary with 20-30 flowers; pedicels shorter than perianth, glabrous. Perianth pale yellow to cream. Pistil 5.5-8.5 mm long, cream or white; gland present. Fruit obliquely ovate, 2.3-4 cm long, 1.1-1.5 cm wide, slightly curved at apex, prominently beaked. Seed narrowly ovate, concave towards base abaxially, 13-20 mm long; wing extending fully or partly down one side of body only, black.