Monocarpic, unifoliate to perennial, plurifoliate acaulescent herb. Leaves often pendant; blade broadly ovate, oblong or obovate, (4–)8–30 cm long, (2.5–)5–20 cm wide, base shallowly cordate, truncate or shortly attenuate, margin crenate-dentate, sometimes irregularly so, apex usually withered, surfaces densely long-pubescent; lateral nerves 7–14(–24) pairs, parallel, spreading; petiolode usually less than 1 cm long but occasionally to 2 cm, densely pubescent. Inflorescences 1–4, erect, arising from the petiolode and/or base of the leaf midrib, panicles subcorymbiform to somewhat elongate, 4–30-flowered; peduncles (2.5–)8–18.5 cm long, pilose with eglandular and sometimes glandular hairs; pedicels 15–35 mm long, densely pilose, with or without glandular hairs; bracts linear to oblanceolate, 5–16 mm long, pubescent. Calyx lobes lanceolate to linear-lanceolate, 3–9.5 mm long, pilose outside, with or without glandular hairs, eglandular-pubescent within. Flowers (?sometimes) smelling of creosote and honey. Corolla pendulous, variously pale blue-violet to white, sometimes darker on the limb than the tube, with either a paler (white or yellow) or darker (purple) mouth, (32–)37–60 mm long, pilose or glandular-pilose outside; tube (16–)20–40 mm long, 3–6 mm deep in the centre, downcurved above the centre and expanding to the mouth, where 10–15 mm deep; limb strongly bilabiate; upper lip of two suberect rounded lobes (5.5–)7–12 mm long, (6–)8–13 mm wide; lower lip 15–28 mm long, lateral lobes 8–15 mm long, 8.5–17.5 mm wide, median lobe 10–17.5 mm long, (8–)10–19.5 mm wide, all rounded. Stamens arising above the middle of the corolla tube; filaments 4–6(–8) mm long, slightly thickened centrally, with stalked or subsessile glands; anther thecae rounded, 1.4–2 mm wide; staminodes 0.5–0.75 mm long. Ovary cylindric, 6–17.5 mm long, densely pubescent, hairs short, spreading, predominantly glandular; style 1.5–7 mm long, glandular-pubescent; stigma shallowly bilobed, 1–2.5 mm wide, papillose. Capsule 20–60(–70) mm long, 2–3.5 mm diameter, pubescent. Seeds 0.5–0.8 mm long, reticulate.
