Herbs perennial. Stems erect, 60-80 cm, retrorse pilose, slender; branches many, divaricate. Petiole 0.6-2.5 cm; leaf blade ovate-cordate to oblong-cordate, 5-6 × ca. 2.3 cm, adaxially somewhat bullate, villous, abaxially densely villous, base cordate, margin crenate or double crenate, apex acute. Verticillasters ca. 10-flowered, widely spaced; floral leaves sessile, ovate; bracteoles few, linear, villous, 2.5-3.5 mm. Calyx obconical, 5-7 × 5-7 mm, sparsely pubescent, puberulent inside, obscurely 10-veined; teeth triangular, ca. 1.5 mm, subequal or posterior 3 larger, apex rigid, pubescent. Corolla reddish, to 1.3 cm, puberulent except for glabrous base, tube ca. 7 mm; upper lip straight, ovate, ca. 3 mm, margin entire; lower lip ca. 6 mm, lateral lobes ovate; middle lobe largest, obcordate. Stamens reaching middle of upper corolla lip; filaments puberulent. Style slightly exserted. Nutlets brown, triquetrous, ovoid, ca. 2 mm, adaxially ribbed, glabrous. Fl. Jul, fr. Aug.
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An erect shrub. It is woolly and keeps growing from year to year. It is 60-80 cm high. It is slender with many branches. The leaves are stalked. They are 0.6-2.5 cm long. The leaf blades are oblong and heart shaped with teeth. They are 5-6 cm long by 2.3 cm wide. The flowers are pink with purple spots. The occur in many flowered rings. The nutlets are brown and 3 sided. They are about 2 mm long.
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