Annuals. Stems slender, small, glabrous or apically sparsely short hairy. Stems 2-12(-20) cm tall, simple or basally branched. Lower leaves short petiolate and often early withering, upper subsessile and not withering; leaf blade oblong to ovate-oblong, 3-5 X 1-2.5 mm, base attenuate, margin entire and glandular ciliate. Racemes terminal and axillary, short to elongated, lax, few flowered; bracts alternate, leaflike, lower obovate-lanceolate, upper linear. Pedicel 3-7 mm, as long as or slightly longer than bract, curved upward in fruit, 1.5-2 X longer than calyx, glandular hairy. Calyx 4-lobed; lobes linear-lanceolate to ovate-oblong, midrib conspicuous. Corolla pale blue, as long as or shorter than calyx; tube short. Capsule reniform-obcordate, compressed, 2-3 X 3.5-7 mm, glabrous or very sparsely glandular hairy, apex parted 1/3-1/2 of capsule length; lobes ovate-oblong. Style 0.3-0.6 mm, much shorter than notch. Seeds ellipsoid, flattened, ca. 1 mm, smooth. Fl. Apr-Jun. 2n = 14.
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