Herbs perennial, stoloniferous. Stolons ca. 10 cm, pilose or villous especially on younger parts. Fertile branches erect, ca. 6 cm tall. Petiole 1-2 cm, sometimes narrowly winged; leaf blade purplish green or purplish red abaxially, elliptic to ovate-elliptic, 2-3.4 × 1.2-2.3 cm, papery, pilose, base cuneate to decurrent, margin irregularly coarse crenate, apex obtuse to subrounded. Verticillasters 2-flowered, subapical, 2 or 3 together. Pedicel 2-4 mm. Calyx campanulate, ca. 7 mm; teeth ovate-triangular, subregular, ca. 1/2 as long as calyx, ciliate. Corolla purplish with purple spots or lines, tubular, 1-2 × as long as calyx, sparsely pubescent, villous annulate inside; upper lip straight, apex emarginate; middle lobe of lower lip 5-7 mm, flabellate, apex emarginate, lateral lobes linear-oblong. Nutlets glabrous, with an areole adaxially. Fl. May-Aug, fr. Jul-Sep.
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