Stems brown (sometimes drying black), erect, bifariously hairy, 10-30-(45) cm tall. Leaves linear to narrow-lanceolate, widest between petiole and middle, usually shallowly toothed, acuminate at apex, green beneath, (3)-4-7-(10) × 0.3-1-(1.2) cm. Inflorescences many-flowered, (5)—10—15—(20) cm long; peduncle stout, glabrous or with eglandular hairs, 3-7 cm long, rachis and pedicels uniformly eglandular-hairy, very rarely glandular as well. Bracts and calyx ciliolate or rarely glabrous. Corolla with magenta ring at throat, anterior lobe >2 mm wide. Capsule light to dark brown, (2.5)-3-3.5 × 2.5-3 mm.