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FOC | Family List | FOC Vol. 17 | Verbenaceae | Vitex

2. Vitex tripinnata (Loureiro) Merrill, Trans. Amer. Philos. Soc., n.s. 24: 335. 1935.

越南牡荆 yue nan mu jing

Tripinna tripinnata Loureiro, Fl. Cochinch. 2: 391. 1790; Vitex annamense Dop.

Shrubs or trees, 4-8 m tall. Branches gray-brown; branchlets black-purple when dry, conspicuously lenticellate. Leaves 3-foliolate; petiole 2-5 mm; petiolules 0.5-1.7 cm; leaflets narrowly elliptic, narrowly ovate, ovate, or obovate, glabrous, abaxially greenish and yellow glandular, base cuneate to subrounded, margin entire, apex acuminate to short caudate-acuminate; central leaflet 3-11 X 2-4 cm. Panicles 6-11 cm; branches dichotomous or trichotomous; peduncle 5-10 mm. Calyx 2-3 mm, minutely 5-dentate, subglabrous, yellow glandular. Corolla yellow to purplish; tube ca. 5 mm, outside subglabrous and glandular, villous in throat. Stamens exserted. Ovary glabrous. Fruit black when dry, globose, ca. 1 cm in diam. Fl. May, fr. Jun-Jul.

Forest edges on mountain slopes; 300-600 m. Hainan [Cambodia, Vietnam].


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