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

6. Premna cavaleriei H. Léveillé, Repert. Spec. Nov. Regni Veg. 10: 439. 1912.

黄药 huang yao

Clerodendrum elachistanthum Merrill ex H. L. Li.

Trees 4-9 m tall; bark pale gray. Branches red-brown, terete, with small elliptic lenticels, densely tomen-tellous when young, glabrescent. Petiole 2-5 cm, sparsely velvety to subglabrous; leaf blade ovate to ovate-elliptic, 9-15 X (3.5-) 5-9 cm, thinly papery, both surfaces sparsely pubescent to subglabrous, abaxially obscurely glandular, base broadly cuneate, rounded, truncate, or subcordate, margin entire, apex acuminate to obtuse. Inflorescences paniculate cymes, 11-32 X 8-15 cm; branches trichotomous. Calyx campanulate, 1-2.5 mm, slightly 2-lipped, outside pubescent and obscurely glandular; teeth 5, obtuse, triangular. Corolla yellowish, slightly 2-lipped, 4-lobed, outside pubescent and glandular; tube 2-3 mm, villous in throat. Ovary glabrous, apically densely yellow glandular. Fruit ovate-globose, ca. 2 mm in diam. Fl. and fr. May-Jul.

* Mixed forests on mountain slopes; 800 m. Guangdong, Guangxi, Guizhou, E Hunan, W Jiangxi.


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