Annual herb, stems several to many from the crown, tufted in discrete rosettes, 10-150 mm long, erect to more or less prostrate, simple, minutely glandular-puberulous, often glabrescent, occasional sessile glistening glands as well, leafless except at base. Leaves opposite, bases connate, crowded at base in a ± spreading rosette, blade 2.5-20 x 2-10 mm, elliptic to subrotund tapering to a broad flat petiolar part 2-35 mm long (roughly equalling to twice as long as blade), apex very obtuse, margins entire to obscurely or distinctly serrate or crenate, both surfaces minutely glandular-puberulous, soon glabrescent but sessile glistening glands often present. Flowers many in terminal racemes, crowded initially, distant in fruit. Bracts (lowermost) c. 1-4 x 0.4-2 mm, lanceolate or linear-lanceolate. Pedicels (lowermost) c. 1-6 mm long. Calyx very obscurely bilabiate, tube (0.1-)0.3-0.5(-0.6) mm long, lobes (1.6-)2.5-4.5 x 0.4-0.75 mm, oblong-lanceolate, margins minutely glandular-puberulous, a few sessile glistening glands also present and on calyx tube. Corolla tube 3.5-4.5 x 0.75-1 mm in throat, cylindric, inflated in upper part, limb obscurely bilabiate, 5.5-7.5 mm across lateral lobes, posticous lobes 1.75-3.5 x 0.8-1.6 mm, anticous lobe 2-3 x 0.8-1.8 mm, all lobes oblong, tips either± acute to obtuse or shortly (rarely deeply) bifid, margins flat to ± revolute, white, or pale yellowish to pale or deep mauve with a yellow star-shaped patch around mouth and down back of throat, minutely puberulous to glabrous outside, glistening glands on backs of lobes, inside a posticous longitudinal band of clavate hairs together with 2-3 lesser lateral bands. Stamens 4, anticous anthers 0.25-0.4 mm long, just visible in mouth, posticous anthers 0.6-0.8 mm long, included, posticous filaments weakly bearded. Stigma 0.8-1.6 mm long, sometimes bifid, deeply included. Style 0.2-0.8 mm long, much shorter than stigma. Ovary 0.8-1.3 x 0.6-1.3 mm. Capsules 3-4.5 x 2-3 mm. Seeds 0.6-0.8 x 0.3-0.4 mm, blue-violet or pallid.
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Tufted annual, 10-150 mm tall. Leaves in a basal spreading rosette, elliptic, tapering at base, entire or serrate. Flowers in dense racemes, bilabiate, corolla tube 3.5-4.5 mm long, lobes entire or shortly bifid, white to pale yellowish or pale to deep mauve with a yellow star-shaped patch around mouth and down back of throat, strongly scented.
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