Description from Flora of China
Vines, to 3 m; stems densely hirtellous, hirsute-hirtellous, or glabrescent, drying dark yellow. Leaves opposite; petiole 2.5-7 cm, densely hirtellous to tomentose-hirtellous; blade drying papery, ovate, oblong-ovate, or elliptic-ovate, 6-17 × 3-11 cm, adaxially sparsely to moderately scabrid to hirtellous, abaxially hirtellous, pilosulous, or pilose with pubescence denser along veins, base cordate, cordulate, truncate, or rarely acute, margins flat, apex acute to acuminate; secondary veins 5-8 pairs; stipules generally caducous, triangular, 4-10 mm, acute. Inflorescences axillary and/or terminal, spiciform to narrowly paniculate, cylindrical to narrowly pyramidal, 7-30 cm, branched to 1-3 orders, densely hirtellous to hirtellous-tomentose, pedunculate; bracts triangular, 1-2 mm. Flowers sessile in congested cymules or small heads. Calyx densely hirtellous; hypanthium portion turbinate to ellipsoid, 1-1.5 mm; limb lobed nearly to base; lobes subulate to narrowly triangular, 1-2 mm. Corolla funnelform, outside densely hirtellous to tomentulose; tube 5-6 × 2.5-3 mm, without slits; lobes ovate, 1-2 mm. Fruit globose, 5-6 × 5-6 mm, glabrous, drying orange-yellow; pyrenes plano-convex to concavo-convex. Fl. Jun, fr. Jun-Nov.
Puff (Opera Bot. Belg. 3: 207-292. 1991) reported this species only from Hainan, but W. C. Ko (in FRPS 71(2): 117. 1999) reported it also from Guangdong and Fl. Fujian. (5: 185. 1993) from Fujian.
● Broad-leaved forests on hill slopes; 400-900 m. Fujian, Guangdong, Hainan.