4. Toxicodendron fulvum (Craib) C. Y. Wu & T. L. Ming, Fl. Yunnan. 2: 394. 1979.
黄毛漆 huang mao qi
Rhus fulva Craib, Kew Bull. 361. 1926.
Trees, ca. 10 m tall; branchlets yellow tomentose. Petiole and rachis ferruginous tomentose; leaf blade imparipinnately compound, 30-70 cm; leaflets 9-13, opposite; leaflet blade oblong, 8-14 × 3.5-4 cm, coriaceous, adaxially minutely pubescent or subglabrous along midrib, abaxially ferruginous tomentose, base oblique, rounded to truncate, margin entire or rarely obscurely serrulate distally, apex acuminate or acute, lateral veins ca. 25 pairs, prominent abaxially, veinlets slightly impressed adaxially and prominent abaxially. Inflorescence paniculate, 20-33 cm; peduncle robust, 8-20 cm, peduncle and rachis ferruginous tomentose; floral subtending bracts to 1.7 mm, caducous. Flowers sessile to subsessile. Calyx lobes oblong to broadly ovate, ca. 0.5 mm, sparsely pubescent or subglabrous. Petals oblong, slightly longer than calyx. Drupe subglobose, 5-6 mm in diam.; epicarp thin, yellow, lucid, minutely pubescent, irregularly dehiscent at maturity; mesocarp thick, waxy, with brown longitudinal resin ducts. Fl. May-Jun, fr. Aug-Oct.
Hill forests on limestone; ca. 1000 m. S Yunnan (Mengla, Menglian) [N Thailand].