Perennials, 10-50 cm tall, white villous. Rhizomes short. Stems erect, rarely ascending, terete, basally woody with age. Basal leaves short petiolate; leaf blade spatulate. Stem leaves opposite or upper ones alternate, sessile, elliptic to obovate-lanceolate, 2-7 cm, papery, margin irregularly serrate. Racemes terminal, lax, 2-20 cm; bracts triangular-ovate, ca. 1 mm. Pedicel shorter than or as long as calyx. Calyx funnelform, 5-10 mm, to 1.6 cm in fruit, over 1 cm in diam.; lobes slightly longer than tube, lanceolate-triangular, apex narrowly acute, conspicuously 10-veined. Corolla blue-purple, 1.5-2 cm; tube almost as long as lips; lower lip yellow-punctate, large, spreading flat, papillate glandular hairy, middle lobe smaller than other lobes and suborbicular; upper lip short, lobes narrowly triangular, apex acute. Ovary apically long hirsute. Capsule ovoid, 2-3.5 mm, flattened. Fl. Apr-Jun, fr. Jul-Sep.
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A herb. It keeps growing from year to year. It grows 10-50 cm tall. The leaves at the base have short leaf stalks and are spoon shaped. The leaves are the stem are opposite to alternate and 2-7 cm long. There are irregular teeth along the edge.
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