Small glab. or slightly viscid-pubescent herb with stems ascending to erect from prostrate base, rather stout, laxly branched, up to 3 dm. tall; branches ascending to erect. Lvs sessile or subsessile, opp., ovate to lanceolate to suboblong, occ. linear-lanceolate, 6-10-(20) × 4-6-(10) mm., entire or with rather distant triangular teeth. Fls axillary on slender peduncles up to 10 mm. long. Calyx-lobes narrow-lanceolate, ± attenuate, obtuse, to narrow ovate-lanceolate, ± 5 mm. long. Corolla 10-12 mm. long, white to yellowish with yellow throat, lips < tube. Anthers connivent, cells parallel, transverse; staminodes filiform. Capsule ± ovoid-globose, c. 5 mm. long, thin-walled.

n = 45

2n = 90

n = 45