Stems brown, prostrate, decumbent or erect, bifariously hairy, rarely more than 30 cm tall. Leaves narrow-lanceolate to ovate to rhomboid, widest between petiole and middle, usually shallowly toothed, acute at apex (sometimes acuminate in ovate-leaved forms), green beneath, (0.5)-1.5-3-(4) × 0.5-1-(2) cm. Inflorescences few- to manyflowered, (5)—10-15—(20) cm long; peduncle slender to stout, usually glabrous, (2)—5—(10) cm, rachis and pedicels uniformly eglandular-hairy, sometimes glandular-hairy as well. Bracts and calyx ciliolate, sometimes glandular or glabrous. Corolla with magenta ring at throat, anterior lobe <2 mm wide. Capsule light to dark brown, (2.5)-3-(3.5) × 3-4 mm.