Herbs biennial. Stems single, much branched below, 20-28 cm tall; branches ascending, densely gray hispid. Basal leaves withered at anthesis; stem leaves sessile, oblong to long elliptic, 1.5-3.5 cm × 3-10 mm, densely strigose, base attenuate, decurrent to petiole, margin entire, apex obtuse. Inflorescences terminal, only basal 1 or 2 flowers bracteate. Pedicel 3-4 mm, divaricate. Calyx 5-parted; lobes vertical, linear-oblong, ca. 2 mm, slightly enlarged in fruit, tightly enclosing nutlets, ca. 1/3 longer than nutlets. Corolla light blue, 5-6 mm wide; tube ca. 2 mm, ca. as long as calyx; throat appendages trapeziform, ca. 0.7 mm, apex emarginate; lobes of limb obovate, ca. 2.5 × 2 mm. Anthers elliptic, ca. 0.7 mm. Nutlets gray-brown, semiglobose-tetrahedral, ca. 1 mm, smooth, glabrous, shiny, narrowly ribbed, adaxial bottom surface smaller than 2 lateral surfaces, 2 lateral surfaces longitudinally ribbed along border line, abaxial surfaces ovate and convex, apex obtuse; stipe ca. 0.3 mm.
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