山橿 shan jiang

Benzoin reflexum (Hemsley) Rehder; B. sericeum Siebold & Zuccarini var. tenue Nakai; B. umbellatum (Thunberg) Kuntze var. latifolium (Gamble) W. C. Cheng; Lindera umbellata Thunberg var. latifolia Gamble.

Shrubs or trees, deciduous. Bark brown, with longitudinal splits and pits. Young branchlets yellow-green, smooth, non-lenticellate, sericeous-pubescent when young, deciduous. Winter buds corniform-conical; bud scales red. Leaves alternate; petiole 6-17(-30) mm, pubescent when young, later glabrate; leaf blade usually ovate or obovate-elliptic, sometimes narrowly obovate or narrowly elliptic, (5-)9-12(-16.5) × (2.5-)5.5-8(-12.5) cm, papery, abaxially greenish pale and white pubescent, later glabrate, adaxially green and pubescent on midrib, later glabrate, pinninerved, lateral veins 6-8(-10) pairs, base rounded or broadly cuneate, sometimes slightly cordate, apex acuminate. Umbels each inserted at both sides of leaf bud; peduncles red, ca. 3 mm, densely red-brown pubescent, deciduous in fruitage; involucral bracts 4, 5-flowered inside. Male flowers: pedicels 4-5 mm, densely white pubescent; tepals 6, yellow, elliptic, equal in length, ca. 2 mm; filaments glabrous, 2-glandular at base in 3rd whorl; glands broadly reniform, long stipitate, stipe base and filament coadnate; reduced pistil small, ca. 1.5 mm, narrowly corniform-conical. Female flowers: pedicels 4-5 mm, densely white pubescent; tepals yellow, broadly oblong, ca. 2 mm, slightly small in outer whorl, white pubescent on dorsal keel outside, laxly pubescent inside; reduced stamens fasciated, ca. 1.2 mm in 1st and 2nd whorls, slightly short in 3rd whorl, 2-glandular at base of filament; glands equal to reduced stamens in size, lower part and reduced stamen coadnate, sometimes only glands visible; pistil ca. 2 mm; ovary elliptic; style and ovary equal in length; stigma disciform. Fruits globose, ca. 7 mm, red at maturity; stipes ca. 1.5 cm, laxly pubescent. Fl. Apr, fr. Aug.

● Valleys, forests and thickets on mountain slopes; below 1000 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Yunnan, Zhejiang.