Monocarpic. Leaf), up to 700 x 700 mm, pilose, base cordate, margin crenate. Inflorescences with many flowers open together. Peduncles up to 500 mm; pedicels 15-20 mm, both pilose with glandular and eglandular hairs. Bracts elliptic, up to 30 x 10 mm. Calyx divided to the base into5 lanceolate segments, 9 x 2 mm. Corolla 52-70 mm long, pilose with glandular and eglandular hairs outside, glabrous inside except for glandular pubescence around mouth, medium violet, floor of tube and base of lower lip marked with white wedges; tube very narrowly funnel-shaped, up to 45 mm long, 6-8 mm in diam. at mid-point, c. 18 mm across mouth between lateral sinuses; upper lip of 2 suborbicular lobes, 12 x 15 mm, lower lip 18-23 mm long, c. 33 mm across, lobes elliptic-oblong, 12 x 9 mm. Stamens arising in upper third of corolla tube, 9 mm long, curved and thickened below the anthers; anther lobes 3 mm long, white suffused pale violet. Ovary 30 mm long, pilose with patent glandular and eglandular hairs; style 8 mm long, terete, slightly dorsoventrally compressed apically, glandular-pilose; stigma stomatomorphic. Capsule up to 150 mm long, 2 mm diam. Seeds 0.5-0.8 mm long, reticulate.