绒毛鸡矢藤 rong mao ji shi teng

Hondbesseion lanuginosum (Wallich) Kuntze; Paederia macrocarpa Wallich.

Vines, to 12 m; stems densely tomentose to glabrescent, drying dark brown. Leaves opposite; petiole 3.5-12 cm, densely tomentose; blade elliptic to oblong-elliptic, 8-20 × 4.5-15 cm, adaxially sparsely to moderately strigillose with pubescence denser on midrib, abaxially densely tomentulose, base cordate to subrounded, margins flat, apex acuminate; stipules caducous often by fragmentation, triangular, 4.5-8.5 × 2.3-5.5 mm, acute to bifid. Inflorescences axillary on main stems and/or terminal on lateral stems, paniculate, densely tomentulose, pedunculate. Flowers subsessile in small heads. Calyx densely tomentulose; hypanthium portion turbinate to subglobose, 1.6-2.5 mm; limb deeply lobed; lobes triangular to suborbicular, 1-1.4 mm. Corolla pale green, dull white, pink, reddish purple, or dark purple, funnelform, outside densely tomentulose; tube 15-17.5 × 3.5-4.5 mm, with slits at base; lobes broadly triangular, 2.7-4 mm, acuminate, marginally crisped. Fruit oblong-elliptic, laterally flattened, 9-15 × 7-9 mm, subglabrous, drying brown; pyrenes elliptic to ovate in outline, flattened, marginal wing 1-2 mm wide. Fl. Jun-Jul, fr. Aug-Feb.

Open forests or thickets, twining on other shrubs and small trees; sea level to 1900 m. Yunnan [Myanmar, Thailand].

Puff (Opera Bot. Belg. 3: 207-292. 1991) noted that this species has the largest leaves of the genus, as well as notably large flowers and fruit, and sometimes has "conspicuously fissured bark" that is also distinctive. W. C. Ko (in FRPS 71(2): 114. 1999) described the corolla lobes as 3-lobed, but this has not been mentioned by any other authors.