蔓生马先蒿 man sheng ma xian hao

Herbs perennial, drying black. Stems numerous, more than 40 cm, prostrate, repent to climbing, glabrous. Basal leaves fernlike; petiole to 25 cm; leaf blade oblong-lanceolate, 15--30 X 5--10 cm, pinnatisect to pinnatipartite; segments 10--17 pairs, linear-lanceolate to oblong, incised-dentate. Stem leaves alternate to ± opposite, ± ovate or ± orbicular, abaxially subglabrous, adaxially sparsely bristly; segments 2--5 pairs. Flowers often in dense clusters, axillary; bracts leaflike. Pedicel short. Calyx tubular, ca. 1.1 cm, glabrous, cleft more deeply anteriorly; lobes 5, unequal, serrate. Corolla pink, ca. 2.5 cm; tube erect, longer than calyx; galea falcate; beak conical, 3--4 mm; lower lip to 1.7 cm, spreading. Filaments subglabrous. Fl. Jul--Aug, fr. Sep--Oct.

* Forest understories, shaded wet paths, thickets; 900--2200 m. Sichuan.