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FOC | Family List | FOC Vol. 5 | Aristolochiaceae | Asarum

37. Asarum wulingense C. F. Liang, Acta Phytotax. Sin. 13(2): 22. 1975.

五岭细辛 wu ling xi xin

Herbs. Rhizomes vertical, 3-4 mm in diam., internodes less than 5 mm. Leaves solitary; petiole recurved, 7-18 cm, pubescent; leaf blade adaxially green with white blotches, narrowly ovate or ovate-elliptic, rarely triangular-ovate, 7-17 × 5-9 cm, abaxial surface densely brown-yellow pubescent, adaxial surface glabrous or pubescent along lateral veins and margin, base auriculate or auriculate-cordate, lateral lobes divaricate, 2-5 × 1.5-4 cm, apex acute to acuminate; cataphylls ovate, ca. 1.2 × 0.8 cm. Peduncle recurved, ca. 2 cm. Calyx purplish, urceolate-campanulate, 2-3 × 2-3 cm; sepals connate beyond attachment to ovary, abaxially densely yellow pubescent; tube cylindric, ca. 2.5 × 1.2 cm, constricted at throat, adaxially longitudinally ribbed, orifice ring ca. 1 mm wide; lobes triangular-ovate, ca. 1.5 × 1.5 cm, base with papillate-corrugate area. Stamens 12; filaments much shorter than anthers; connectives extended beyond anthers, ligulate. Ovary inferior. Styles free, apex 2-forked; stigmas lateral. Fl. Dec-Apr.

* Forests, mountain slopes, moist shady areas; ca. 1100 m. Guangdong, Guangxi, Guizhou, Hunan, Jiangxi.


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