大坪子黄芩 da ping zi huang qin

Herbs rhizomatous. Stems to 60 cm tall, erect, densely spreading glandular white pubescent. Petiole 1-2 cm; leaf blade ovate to ovate-cordate, 2-5 × 1.5-3.5 cm, abaxially densely white pubescent, sometimes also strigose, base shallowly cordate, margin crenulate, apex obtuse. Racemes terminal, 6-17 cm, glandular pubescent; bracts subsessile, elliptic, ca. 6 mm, margin entire, lower 1 or 2 pairs 1.3-2.5 cm, margin crenulate. Pedicel ca. 4 mm. Calyx ca. 3.5 mm, to 5 mm in fruit, densely glandular pilose; scutellum ca. 1.5 mm, purplish, to 3 mm in fruit. Corolla rose, ca. 2.3 cm, glandular puberulent outside, sparsely pilose just below middle lobe of lower lip inside; tube ca. 2 × as long as limb, base slightly bent, zigzag, throat to 7 mm wide; middle lobe of lower lip spreading, circular-ovate, to 1 cm wide, base abruptly constricted, apex emarginate; lateral lobes broadly ovate, to 5 mm wide, apex obtuse. Fl. Aug.

* Mixed oak-pine forests; ca. 2500 m. Yunnan.