Herbs biennial. Rhizomes producing elongated sterile shoots and flowering stems, to 10 cm tall. Stems very delicate with widely spaced cymes. Basal leaves oval, tapering abruptly into a long petiole; lower leaves short petiolate; upper leaves sessile, oblong-lanceolate, 2-5 cm × 5-13 mm, sparsely pubescent, apex acute. Axis of cymes slightly flexuous. Pedicel filiform, sometimes slightly curved, 3-4 mm. Calyx ca. 2 mm, accrescent after anthesis; lobes grayish, linear-lanceolate, with hooked hairs at base of calyx. Corolla blue; tube ca. 2 mm; limb 5(-10) mm wide. Nutlets black, ca. 1.5 mm, shiny, apex acute.
Home