环喙马先蒿 huan hui ma xian hao

Herbs to 40 cm tall, glabrescent except for inflorescences, drying black. Stems single, erect or slightly flexuous, usually branched basally. Leaves alternate, mostly basal, short petiolate or sessile; proximal petioles to 7 cm, slender; leaf blade linear-lanceolate, 2--6 cm X 7--9 mm, pinnatisect; segments 10--14 pairs, ovate, pinnatifid and incised-double dentate. Inflorescences racemose, to 10 cm, lax basally; bracts leaflike, longer than calyx. Pedicel erect, ca. 5 mm. Calyx to 1.2 cm, sparsely pubescent, shallowly cleft anteriorly; lobes 5, unequal, all serrate, lateral ones often deeply divided. Corolla crimson, 2.5--2.8 cm; tube erect, ca. as long as calyx, sparsely pubescent; galea curving from base ± in a circle; beak linear, ca. 8 mm, curved, forming a complete circle with galea; lower lip ca. 1 X 2 cm, slightly ciliate. 2 filaments pubescent apically, 2 glabrous throughout. Fl. Jun--Jul, fr. Aug.

* Moist meadows. NW Yunnan.