Perennial. Stems stoloniferous, decumbent at the base, pubescent. Leaves small, thick, fleshy, petioled, the lower rhomboid-ovate, the upper ovate-lanceolate, 1/2–1 in. long, obtuse, narrowed to the base, deeply crenate-dentate, pubescent on both sides. Panicles racemose, dense, terminal and in the axils of the upper leaves; flowers few in a whorl; bracts broadly ovate, obtuse, fleshy, deciduous; pedicels pubescent, 1/6 in. long. Calyx sub-hispid; throat hairy inside; upper tooth round, apiculate, 1/6 in. long, the edges scarcely decurrent; the others subequal, lanceolate-deltoid, ciliate. Corolla-tube bent down; lower lip violet, much narrowed to the base; upper blue outside, white and spotted inside.