Plants to 5 m tall. Rhizome short, tuberous, diameter unknown. Leaves: sheaths more or less lanuginose; lamina pluriplicate, narrowly elliptic-ovate to elliptic-ovate, 40–100 by 15–40 cm, base cuneate, apex acute, sometimes shortly acuminate, lower side more or less lanuginose, upper side often darker green, thus creating a 2-coloured appearance of the leaves. Inflorescence branched or unbranched, lax or congested, with 1- or 2‑flowered cincinni; pedicels up to 0.5 cm long, to 1(–3) cm in fruit, rarely tuberculate just below the ovary; primary bracts 10–31 cm long, obtuse to acute; branch bracts 2.5–13 cm long, acute; floral bracts (ob)ovate to triangular, 0.3–3.5 cm long, acute to obtuse, mostly caducous; bracteoles narrowly triangular to obovate, 0.2–2 cm long, acute to obtuse; rachis, primary bracts, and branch bracts more or less lanuginose. Flowers orange (sometimes to yellow or scarlet red, or with darker dots), erect, 4–7.5 cm long; floral tube more or less curved around the middle resulting in a horizontally orientated entrance to the flower; sepals pale green, pink, or red, narrowly triangular to narrowly ovate, 0.6–2.2 by 0.2–1 cm, acute; corolla orange to red, 3–5.5 cm long, generally about as long as the staminodes, petals erect, narrowly triangular, 2–3(–4.5) by 0.5–1(–1.4) cm, acute; staminodes (3 or) 4 or 5, orange sometimes with darker dots, 4–6(–7.5) cm long, free part (narrowly) obovate-elliptic, 1.4–2(–4) by (0.4–)0.7–1(–1.5) cm, erect, sometimes 1 recurved; stamen orange, free part narrowly elliptic-obovate, 1.2–3 by 0.4–1.1 cm, theca 0.7–1.2 cm long; style orange to red, free part narrowly elliptic, 1.3–2.5 by 0.3–0.6 cm. Fruit light yellowish green turning green, covered by pinkish, reddish, or purplish tubercles, ellipsoid to (narrowly) obovoid, 3–9 by 1.5–4 cm. Seeds (narrowly) ellipsoid, 4–7 by 2–4.5 mm.