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FOC | Family List | FOC Vol. 11 | Anacardiaceae | Toxicodendron

6. Toxicodendron trichocarpum (Miquel) Kuntze, Revis. Gen. Pl. 154. 1891.

毛漆树 mao qi shu

Rhus trichocarpa Miquel, Ann. Mus. Bot. Lugduno-Batavi 2: 84. 1866; R. echinocarpa H. Léveillé, p.p. excluding Cavalerie 2003.

Deciduous trees or shrubs; young branchlets yellowish brown pubescent, later gray, brown lenticellate; buds yellow tomentose. Petiole 5-7 cm, yellowish brown pubescent, inflated at base; rachis terete or rarely narrowly winged distally; leaf blade imparipinnately compound, 20-40 cm; leaflets 9-15, sessile or subsessile; leaflet blade ovate or ovate-oblong or elliptic, gradually increasing in size toward apex, 7-10 × 2.5-4.5 cm, papery, adaxially sparsely appressed pubescent or subglabrous to minutely pubescent along midrib, abaxially densely yellow pubescent to sparsely pubescent, base oblique, rounded to truncate, margin entire or rarely undulate-serrate, ciliate, apex acuminate and obtuse, lateral veins prominent abaxially. Inflorescence paniculate, 10-20 cm, densely yellowish brown pubescent, with racemose 1.5-3 cm first order branches; floral subtending bracts ca. 1 mm. Pedicel ca. 1.5 mm, pubescent; flowers yellowish green. Calyx glabrous, lobes narrowly triangular, ca. 0.8 mm, obtuse apically. Petals obovate-oblong, ca. 2 mm, revolute at anthesis. Filaments ca. 1.5 mm; anthers ovoid, ca. 0.8 mm. Disk 5-lobed. Ovary globose, minutely setaceous. Drupe oblate, 5-6 × 7-8 mm, yellow and lucid, minutely setaceous; epicarp thin, separating; mesocarp thick, waxy, with brown longitudinal resin ducts; endocarp 4-5 × ca. 6 mm. Fl. Jun, fr. Jul-Sep.

Hill and mountain forests, thickets; 900-2000 m. Anhui, Fujian, Guizhou, Hubei, Hunan, Jiangxi, Zhejiang [Japan, Korea].


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