Perennial; stems several from woody crown, 2-5 dm tall, usually freely branching, puberulent and glandular, at least in inflorescence; basal leaves puberulent, oblanceolate, (5)10-18 cm long, 1-2 cm wide, attenuate to long petioles; cauline leaves 1-3 pairs below the first inflorescence branches, oblanceolate and petiolate or lanceolate and sessile, 5-15 cm long, 1-2 cm wide; inflorescence loose and elongate; cymes terminal as well as at ends of numerous lateral branches; pedicels 1-3 cm long, glandular-puberulent; calyx tubular, 8-11 mm long, glandular-puberulent, 10 prominent greenish nerves often sinuous, lobes narrowly acute, 1/3 as long as tube; corolla greenish-white; petals densely ciliate below but not ciliate above, claws 7-10 mm long, auricles rather prominent, blades about 3 mm long, bilobed 1/3-1/2 their length, the lobes with a small lateral tooth at about the level of the sinus, appendages small, 0.3-1 mm long, pilose-lanate; stamens exserted about 1 mm; styles 3, equaling stamens; fruit a capsule. Flowers mid-August to early October.