屏边黄芩 ping bian huang qin

Herbs perennial. Stems purplish when dry, ascending, ca. 30 cm tall, subterete, base ca. 1.5 mm in diam., few branched, densely antrorse white hirsute. Petiole 2-10 mm; leaf blade broadly triangular-ovate, 1.5-4 × 1-4 cm, papery, white strigose, base cordate, rarely rounded, margin irregularly crenate-serrate, apex acute to slightly obtuse. Racemes poorly defined, terminal, 4-11 cm; bracts rhombic-ovate, margin entire. Pedicel 2-2.5 mm, glandular hirsute. Calyx 2-3 mm, to 4 mm in fruit, densely glandular hirsute outside; scutellum ca. 1 mm, ca. 2.5 × 4 mm, oblate, reflexed, and conspicuously netted in fruit. Corolla reddish with purple spots, 1.4-1.5 cm, glandular pilose outside, finely pilose on lower lip, inconspicuously annulate inside; tube ca. 9 mm, slightly curved, base slightly saccate, throat ca. 3 mm wide; upper lip ca. 2 mm; middle lobe of lower lip spreading, revolute, oblate, to 8 mm wide; lateral lobes adnate to upper lip, ovate, ca. 2 mm wide, revolute. Nutlets unknown. Fl. Jan-Apr.

* Sunny dry grassy slopes; 700-1400 m. Yunnan.