Basal leaves elliptic-lanceolate to ovate-lanceolate, 9–12 cm. long, 3 cm. wide, eventually becoming 19 × 5 cm., attenuated into a petiole about equalling the lamina, ± densely adpressed hispid-setulose; cauline leaves sessile, elliptic or ovate-lanceolate, 12–13 cm. long, 4 cm. wide.
Herb at least 35 cm. tall, the stems densely leafy and densely shortly adpressed pilose with retrorse rather bristly hairs.
Corolla white, shortly campanulate; tube 5.5–6 mm. long, the bosses white, exserted, (0.6–)0.9–1.5 mm. long, 2–2.2(–2.5) mm. wide; lobes broadly ovate-oblong, 2.5–3.5 mm. long, ± spreading, emarginate.
Calyx-lobes 3–5 mm. long, acute, grey-pilose.
Pedicels 6–9 mm. long, densely adpressed pilose.
Inflorescences densely leafy; bracts leaf-like, the lower 8–11 cm. long, 2.5–4 cm. wide; secondary bracts linear-lanceolate.