松林马先蒿 song lin ma xian hao

Herbs perennial, 21--35 cm tall. Roots fascicled, fleshy. Stems single, long white pubescent. Leaves alternate, ± forming a basal rosette; petiole to 1.3 cm, distal ones ± sessile; leaf blade elliptic or oblong, 2--5.5 cm X 5--14 mm, sparsely long pubescent on both surfaces, pinnatifid; segments 6--9 pairs, callus-serrate. Inflorescences racemose, to 18 cm, interrupted basally; bracts leaflike, more than 1 cm apically. Pedicel barely 5 mm, slender. Calyx campanulate, ca. 1 cm; lobes 5, unequal, serrate. Corolla red, 1.6--1.8 cm; tube ca. as long as calyx, glabrous; galea slightly falcate, glandular; beak bent upward, ca. 5 mm, marginally 2-toothed; lower lip ca. 1 X 2 cm, middle lobe rounded, apex not emarginate. Filaments sparsely pubescent apically. Fl. Aug, fr. Sep--Oct.

* Pinus forests; 2500--2800 m. NW Yunnan.