Hairy or hispid rhizomatous perennial, with erect stems to 1 m tall and creeping, slender rhizomes. Basal and lowermost cauline lvs with long slender petioles > lamina; lamina 6-10 × 3-6 cm, ovate, hairy, especially on veins below, crenate-serrate; base subcordate or cordate; apex short-acuminate or acute; most cauline lvs sessile or shortly petiolate, 5-15 × 0.7-5 cm, narrow-ovate or lanceolate; base cuneate to attenuate, otherwise similar to basal lvs. Lower bracts similar to upper cauline lvs; upper bracts linear to subulate, mostly > pedicels. Racemes long, terminal, puberulent; fls secund, ± nodding; pedicels c. 5 mm long, puberulent, becoming ± recurved by anthesis. Calyx teeth c. 7 mm long, narrowly oblong or lanceolate, hairy or glabrate, reflexed. Corolla 2-3 cm long, campanulate-funnelform, violet-blue or bluish mauve; lobes = or slightly < tube, not spreading widely or reflexing. Stigmas 3-(4). Capsule 3-celled, 6-9 mm long, obovoid, dehiscing by basal slits.