Stems 60-90 cm, erect, white stellate dendroid tomentose. Petiole 0-4 mm; leaf blade ovate, 0.8-2.5 cm, scaly tomentose, base rounded to cordate, margin crenate, apex acute to obtuse. Verticillasters few flowered, widely spaced, in interrupted terminal spikes, short pedunculate basally; bracts lanceolate. Calyx 5-6 mm, lanate; posterior teeth much shorter than calyx tube, triangular; anterior teeth subulate, shorter. Corolla 1.5-1.8 cm, tube incurved, funnel-form, limb short. Nutlets linear-oblong, 1.5-2 mm.
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