Herbs annual. Main roots black-brown, straight, terete. Stems 4-6, cespitose, ascending or erect, branched above, 7-15 cm tall, densely appressed pubescent; branches spreading. Basal leaves forming a rosette, sessile; leaf blade linear-spatulate to linear, 2-3 cm × 2-4 mm, longitudinally flexed along midvein, pubescent, adaxially with fewer hairs, base attenuate, apex obtuse; stem leaves similar to basal leaves, narrower, shorter. Inflorescences terminal on branches, 3-7 cm in fruit; lower bracts similar to stem leaves; upper bracts linear, slightly shorter than fruit. Fruiting pedicel erect, 1.5-2 mm. Calyx lobes linear, ca. 1.5 mm, pubescent outside, enlarged in fruit, usually shorter than nutlets. Corolla light blue, campanulate; tube ca. 1 mm; limb 2-2.5 mm wide; throat appendages trapeziform, ca. 0.5 mm; lobes oblong to obovate. Style surpassing nutlets by 0.5 mm. Nutlets ovoid, ca. 2.5 mm, densely granulose, disc with 3 or 4 short glochids along center line; marginal glochids in 2 rows; inner glochids 0.5-0.8 mm, often curved; outer glochids ca. 0.2 mm. Fl. and fr. Jun-Aug.