Herbs perennial. Stems erect, unbranched, 6-23 cm tall. Basal leaves often in a rosette, petiolate, upper leaves sessile to petiolate, sometimes alternate; petiole 0.7-2 cm; leaf blade lanceolate to ovate-oblong, 1.5-4 × 1-1.5 cm, adaxially densely villous-strigose, abaxially sparsely villous-ciliate, margin villous-ciliate. Apical verticillasters crowded, forming dense spikes 3-10 cm; apical floral leaves reduced, lanceolate to ovate, margin subentire or entire. Calyx broadly campanulate, 5-7 mm, lanate-villous; teeth regular, subulate-triangular, to 2/3 as long as calyx, apically acute, villous-ciliate. Corolla blue-purple or blue, tubular, 1-1.8 cm, puberulent, villous annulate inside; upper lip straight, with 2 circular lobes; middle lobe of lower lip flabellate, lateral lobes oblong. Nutlets adaxially swollen at middle, areole to 2/3 as long as adaxial side of nutlet. Fl. Apr-May, fr. May-Jun.

Sparse grass on slopes, thickets, riverbank grasslands. Anhui, Hebei, Heilongjiang, Jiangsu, Liaoning, Nei Mongol [Korea, Russia]