Cardiochlamys sinensis Handel-Mazzetti, Akad. Wiss. Wien Sitzungsber., Math.-Naturwiss. Kl., Abt. 1, 57: 241. 1920; Porana henryi Verdcourt.

Climbers; indumentum dull yellow. Stems sericeous, glabrescent. Petiole 1.6-4.9 cm; leaf blade ovate-cordate, 6.3-9.5 X 3.6-7.8 cm, smooth or rugulose, dull yellow to reddish pubescent. Panicle lax; bracts ovate-oblong. Pedicel 3-6 mm, elongating to 8 mm. Flowers 4.5-6(-7) mm. Sepals broadly ovate to linear-filiform, equal, 1-2 mm, tomentose abaxially. Fruiting calyx tan to brown, clasping; outer 3 sepals ovate-cordate to nearly circular, (1.2-)1.4-1.9 X (1.2-)1.5-1.7 cm, sparsely puberulent abaxially, margin adherent below middle. Corolla white to cream, campanulate-funnelform; limb 4-6(-7) mm in diam., subentire, dull yellow sericeous outside. Stamens unequal, 2 reaching throat, 3 included; filaments villous basally. Disc ringlike or absent. Ovary glabrous or sparsely villous. Style longer than ovary. Fruit tan brownish with darker lines, ellipsoid-obovoid, 3.5-6 X 2.5-4 mm, glabrous or sparsely pubescent, apiculate. Seeds brownish to black, ellipsoid-globose, 3-4 X ca. 3 mm, glabrous. Fl. Oct-Dec, fr. Nov-Feb.

* Calcareous and schistaceous soils, dry slopes, scrub, rocky cliffs, river banks; 300-2000 m. Sichuan, Yunnan.