Erect to spreading shrub, 0.6-2.7 m tall; root-system unknown. Branchlets densely appressed-pubescent at flowering. Leaves variable, ±terete to almost flat, linear; ±terete leaves equilaterally to compressed pentagonal in cross-section, convex to shallowly concave between angles, 3.5-14 cm long, 1-2 mm diam., sparsely appressed-pubescent, often twisted near base, with longitudinal veins 5 all around, at angles, or sometimes 9 in all in distal half with prominent veins on all faces but adaxial one; almost flat leaves ±thick, concave with 5 prominent longitudinal veins, 2 marginal and 3 on underside (venation on upper side obscure). Inflorescence a solitary axillary umbelliform raceme, with 18-20 flowers; pedicels pink, glabrous. Perianth bright pink. Pistil 6.5-8 mm long; gland triangular-obovoid, 3 mm high. Fruit 1 or 2 per axil, subsessile, obovate-elliptic, ±straight, 2-2.2 cm long, 1-1.2 cm wide, acuminate, scarcely beaked but with prominent readily broken apiculum. Seed obliquely ovate, 11-12 mm long, 5-6 mm wide; wing extending down both sides of body, not notched, pale brown with black streaks, black at base.
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