Shrubs erect, unarmed. Stem and branches inconspicuously obtusely ridged. Petiole 0.5--1.5(--1.8) cm, widened toward base, narrowly winged for 1/4--1/3 its length; abscission zone apical; tendrils absent. Leaf blade abaxially glaucous, lanceolate or oblong-lanceolate, 7--12 × 1--2.5(--3) cm. Inflorescence borne in axil of leaf or scalelike bract at base of young branches, of 1 umbel, basally sometimes prophyllate; peduncle slender, 1.5--5 cm; umbels of both sexes several flowered, base scarcely thickened. Male flowers: tepals dark red, 2.3--2.5 × 1--1.2 mm; stamens very short. Female flowers: tepals slightly smaller than male ones; staminodes 3. Berries black, globose, 7--10 mm in diam. Fl. Oct, fr. Oct--Nov of following year.

* Forests; 800--1900 m. Guizhou, W Sichuan.