大姚黄芩 da yao huang qin

Scutellaria indica Linnaeus var. ambigua Handel-Mazzetti.

Herbs perennial, rhizomatous. Stems 14-24 cm tall, erect to ascending, unbranched, base 1-2.2 mm in diam., very densely spreading, glandular, white pilose. Leaves in 3 or 4 widely spaced pairs; blades of mid stem leaves largest, subcircular to triangular-ovate, 1.1-4.3 × 1.4-3.5 cm, papery, densely glandular pilose, with numerous glands abaxially, basal blades subcircular and less than 1 cm, base rounded or cuneate to shallowly cordate, margin crenulate, apex rounded to subacute. Racemes terminal, 3.5-9 cm; bracts ovate to lanceolate, minute, 1.5-3 mm, margin entire; basal bracts short petiolate, 0.7-2 cm, margin dentate. Pedicel 2-3 mm, glandular puberulent. Corolla blue-purple, 1.2-1.5 cm, glandular puberulent outside, pubescent annulate inside; tube as long as limb, base bent, gradually dilated upward, zigzag, to 5 mm wide at throat; middle lobe of lower lip broadly obcordate, dark purple spotted, apex erose-dentate; lateral lobes oblanceolate. Nutlets unknown. Fl. Jun.

* Gravelly soils in forests; 2000-2100 m. Yunnan.