Herbs perennial. Stems erect to obliquely spreading, 35-45 cm tall, short strigose. Leaf blade oblong to ovate, 1.5-4 × 0.5-1.5 cm, strigose, abaxially more densely and longer strigose along veins, base rounded to broadly cuneate, apex acute. Inflorescences at apex of branches, extra-axillary, with solitary flowers, bracteate throughout; peduncle thin, weak, with thick hairs 1-1.5 cm; bracts leaflike. Pedicel 1-1.5 mm, densely short strigose, usually pendulous after anthesis. Calyx 5-parted; lobes narrowly ovate, ca. 2 mm, slightly enlarged in fruit, ca. 3 mm. Corolla light blue-purple; throat appendages ca. 0.5 mm, pubescent, apex retuse; limb 4-5 mm wide; lobes suborbicular, ca. 3 mm wide. Anthers oblong, ca. 0.5 mm, apex obtuse. Style slightly longer than corolla tube; stigma capitate. Nutlets brown, oblique subulate, trigonous-tetrahedral, ca. 1 mm, glabrous, adaxial bottom surface smaller than 2 subequal lateral surfaces; abaxial surfaces broadly ovate, 1-1.3 mm, narrowly marginate; stipe ca. 3 mm, curved. Fl. May.
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