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.
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A small shrub. It grows 1-2 m high. The young branches are 4 sided. The leaves are sword shaped. They are 6-15 cm long and 3-4 cm wide. They taper to the tip and are almost heart shaped at the base. There are teeth along the edge. The flowers are small and white. They are in groups 5-15 cm long at the ends of branches. The flowers are in rings of 6-12. The fruit are oblong nutlets. They are yellowish-brown.
It is a temperate plant. It grows in valleys, waste area and dense forests between 1,100-2,400 m above sea level. It is native to western Yunnan in China.
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Valleys, hills, waste areas, dense forests; at elevations from 1,100-2,400 metres
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