Corolla tube 18–24 mm. long and widening at 3/5-4/5 of its length into a cyathiform upper part, at the mouth 11–14 mm. wide, densely short-pubescent outside and glabrous inside; corona lobes lingulate or subulate, 1·5–3 x 1–1·5 mm. glabrous; corolla lobes ovate, 6–10 x 6–9 mm., gradually or abruptly narrowing into the pendulous tails; lobes (including the tails) 100–150 mm. long, puberulous or pubescent outside.
Follicles divergent at an angle of 170–180°, tapering towards a narrow apex and ending in a knob, 19–40 cm. long and 1·5–2·5 cm. in diam.; exocarp thick and hard, with a few or rather many small protuberances, puberulous or short-pubescent, fairly densely lenticellate, lenticels fairly elongate.
Inflorescence on long or short branches or axillary, (1)2–9-flowered, sessile or pedunculate, lax or congested, densely pubescent in all parts; pedicels 3–6 mm. long; bracts sepal-like.
Seeds with the grain 14–17 x 3–4 mm., densely pubescent; rostrum glabrous for 37–64 mm. and bearing a coma for 18–37 mm.; coma erect spreading, 45–75 mm. long.
Stamens 0–3 mm. exserted; filaments 4–5 mm. long, straight; anthers 5·2–6·9 x 1·5–2 mm. glabrous; acumen 0·2–0·6 mm. long.
Ovary 1·4–1·8 x 2 mm., densely hispid with erect hairs; style 13–16 mm. long; clavuncula 2 x 2 mm.; stigma minute.
Liana, up to 9 m. long, deciduous, flowers appearing before or with the leaves.
Sepals subequal, ovate or narrowly elliptic, 10–17 x 3–6·5 mm., acute.
Branchlets densely puberulous or short-pubescent.