大黄药 da huang yao

Aphanochilus penduliflorus (W. Smith) Kudo.

Subshrubs aromatic, 1-2 m tall. Branchlets brown when dry, sparsely floccose-puberulent shiny glandular. Leaves oblong- or ovate-lanceolate, 6-18 × 1.6-4.3 cm, mem-branous, adaxially glabrous, finely dusty pilose on veins, abaxially glabrous, yellowish glandular, base attenuate, cuneate, or rounded and slightly oblique or cordate, margin serrulate, apex acuminate; main veins raised, reddish abaxially. Spikes terminal and axillary, 5-15 cm, pendulous; verticillasters sessile, 6-12-flowered, lower ones widely spaced; rachis ± white pilose; bracts linear to linear-oblong, ca. 2 × as long as pedicels. Pedicel 2-4 mm, ± pendulous, ± white pilose. Calyx campanulate, ca. 3 mm, densely glandular outside; teeth triangular-subulate, subequal or anterior 2 slightly shorter; fruiting calyx tubular-campanulate, to 5 × 2 mm. Corolla white, ca. 5.5 mm, subglabrous; tube ca. 3 mm, funnelform, to 2 mm wide at throat; upper lip ca. 1.5 mm, apex emarginate; middle lobe of lower lip subcircular, lateral lobes semicircular. Nutlets brown, oblong, ca. 1.25 mm, adaxially ribbed, glabrous. Fl. Sep-Nov, fr. Oct-Jan.

* Valleys, hills, waste areas, dense forests; 1100-2400 m. Yunnan

Used medicinally.