Herbs erect. Stems 30-50 cm, much branched above base, tawny purple; branches erect-patent; internodes 2-12 cm, with 2 rows of pilose hairs. Petiole 0.5-1.5 cm, gradually shorter upward, adaxially pubescent; leaf blade ovate-triangular to oblong-lanceolate, 3-6 × 0.8-2.5 cm, sparsely fine pilose, densely impressed glandular abaxially, base cuneate, decurrent, margin remotely serrate, apex acuminate. Spikes dense, 3.5-4.5 cm, secund; rachis pubescent; bracts subcircular to broadly ovate, ca. 5 × 6-7 mm, caudate-cuspidate, glabrous, sparsely glandular, tinged purple, margin ciliolate, apex 1-1.5 mm. Pedicel less than 1 mm, subglabrous. Calyx 2-2.5 mm, white hispidulous, glandular; teeth triangular, subequal, margin ciliate, apex spinescent. Corolla rose-purple, 6-7 mm, slightly incurved, subfunnelform, throat less than 2 mm wide, upper lip emarginate; middle lobe of lower lip circular, margin entire; lateral lobes truncate or subcircular. Nutlets dark brown, oblong, ca. 1.5 mm, tuberculate. Fl. and fr. Sep-Nov.
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