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Corolla crimson, deep mauve or pink to white; tube crimson to white, 2·2–3·5(4) times as long as the calyx, 2–3 x (0·6)1–1·3(1·9) cm., outside pubescent, only at the very base nearly glabrous, glabrescent inside; narrow basal portion 0·6–1 times as long as the calyx, 0·5–0·9 x 0·2–0·4 cm.; lobes deep mauve to white, obovate, 1·3–2·5(3·5) x 1–2 cm., apiculate, slightly undulate, both sides puberulous; a glabrous scale at the base (2)2·5 x 1·5 mm.
Small succulent shrub, 0.2-0.7 m high. Leaves 10-30 mm broad, apex acute to rounded, rarely emarginate; secondary nerves indistinct. Upper, wide part of corolla quite glabrous within. Terminal anther appendages short, included. Flowers pink or mauve to deep reddish purple, usually darker in throat.
Leaves petiolate; petiole 1–4 mm. long; lamina oblong to narrowly oblong, 3·5–9·1 times as long as wide, 4–11·5 x 0·5–3·1 cm., rounded and apiculate to mucronate, rarely emarginate, above pubescent, especially the midrib; secondary veins more or less inconspicuous, beneath pubescent.
Stamens included; free part of filament glabrous outside, lanate inside; anther 5–6·5 x 1–1·5 mm., hispid outside; cells 2–3 x 1 mm.; appendages (1·2)1·5–2 times as long as the anther, hispid.
Calyx crimson or pink to green, narrowly oblong to narrowly ovate, 7–11 x 1·5–3 mm., pubescent outside, appressed-pubescent inside, especially towards the apex.
Pistil 9–11·5 mm. long; ovary glabrous or puberulous to sericeous; carpels 1·5–2·5 x 1–1·5 x 1–2·5 mm.; style 5·5–7(9·5) x 0·5 mm.; clavuncula 1–1·5 x 0·5–1 mm.
Succulent shrub, 0·2–0·7 m. tall with a carrot-like tuber up to 1 m. in diam. with poisonous clear latex.
Inflorescence 1·5–3·5 x 1–2·5 cm.; bracts narrowly oblong to narrowly ovate, 3–10 x 2 mm.
Seed pale-brown, glabrous, 1·2–1·4 x 0·3 cm., comas dirty white, 2·8–3·5 cm. long.
Pedicels 6–10(15) mm. long, tinged with pink or red.
Follicle grey-brown, 16x1 cm.
