1. Oxybaphus himalaicus Edgeworth var. chinensis (Heimerl) D. Q. Lu, Rep. Abst. 60th Ann. Bot. Soc. China. 102. 1993.
中华山紫茉莉 zhong hua shan zi mo li
Mirabilis himalaica (Edgeworth) Heimerl var. chinensis Heimerl, Notizbl. Bot. Gart. Mus. Berlin-Dahlem 11: 454. 1932.
Herbs annual. Stems ascending or prostrate, many branched, terete, 50-80 cm, sparsely glandular pubescent to glabrescent. Petiole 1-2 cm; leaf blade ovate, 2-6 × 1-5 cm, abaxially hairy, adaxially scabrous, base cordate or rotund, margin pubescent or not obviously denticulate, apex acuminate or acute. Flowers terminal or axillary. Pedicel slender, 1-2.5 cm, densely viscid glandular pubescent. Involucre campanulate, 2.5-5 mm, 5-dentate (teeth triangular), densely viscid glandular pubescent outside. Perianth purple-red or pink, 6-8 mm, apex 5-lobed. Stamens 5, as long as perianth; filaments linear, circinately incurved; anthers ovoid, 2-celled, longitudinally dehiscent. Ovary obconic, glabrous. Style as long as perianth or longer; stigma lobed. Fruit black, ellipsoid or ovoid, ca. 5 mm. Fl. and fr. Aug-Oct.
* Thickets, grasslands, dry and warm river valleys, riversides, rock crevices, rock walls; 700-2700(-3400) m. SW Gansu, S Shaanxi, N Sichuan, Xizang, NW Yunnan.
This species is interesting, being the only Old World representative of an otherwise entirely New World genus. Oxybaphus himalaicus var. himalaicus occurs in N India and usually has four (not five) stamens. Wu Zhengyi (editor’s note) adds that var. himalaicus has also been recorded from S Xizang (in Fl. Xizang).
The roots are used medicinally.