裴氏马先蒿 pei shi ma xian hao

Herbs annual, stout, drying black. Stems many branched, strongly woody, densely brown tomentose. Leaves opposite; petiole ca. 3 cm, sparsely long pubescent; leaf blade broadly ovate, ca. 3 X 3 cm, pinnatisect; segments 2--5 pairs, elliptic to oblong-lanceolate, pinnatisect, linear-oblong, pinnatilobate or incised-dentate. Flowers solitary in distal leaf axils. Pedicel ca. 3 mm. Calyx ca. 5.5 mm, distinctly cleft anteriorly; lobes 5, triangular, small. Corolla tube to 1.7 cm, more than 2 X as long as galea, glabrous; galea slightly falcate; lower lip ca. 6 mm, long ciliate. 2 filaments pubescent, 2 glabrous. Capsule triangular-lanceolate, ca. 1 cm X 2.5 mm, apex acute. Fl. Jul, fr. Jul-Aug.

* ca. 1800 m. S Yunnan.