Henrya silvestrii Pampanini, Nuovo Giorn. Bot. Ital. 17: 696. 1910; Henryastrum silvestrii (Pampanini) Happ.

Herbs twining. Stems to 1.5 m, slender, pubescent along 1 side. Petiole puberulent, 6-10 mm; leaf blade ovate-oblong, 2-3 × 0.8-1.3 cm, adaxially pubescent, abaxially glabrous and pale gray, base truncate to shallowly cordate, apex acuminate; lateral veins slightly elevated adaxially. Inflorescences dichasial, as long as leaves; peduncle 1.2-2 cm. Pedicel slender, 3-8 mm. Sepals lanceolate, ca. 1 mm. Corolla ca. 5 mm in diam.; lobes lanceolate, ca. 2 × 1 mm. Corona lobes oval, fleshy, shorter than anthers. Anthers reniform, appendages rounded. Fl. Jul.

* Forests, thickets. Hubei.