Plants to 3.5(–5) m tall. Rhizome tuberous, c. 2.5 cm diameter. Leaves: sheaths more or less lanuginose; lamina pluriplicate, (narrowly) ovate to (narrowly) elliptic, 30–100 by (10–)15–40 cm, base narrowly cuneate to obtuse, apex acute, shortly acuminate, lower side more or less lanuginose. Inflorescence often branched, with 2‑flowered cincinni; pedicels 0.5–3 cm long, to 5 cm in fruit; primary bracts 18–30 cm long, acute to obtuse; branch bracts 8.5–15 cm long, obtuse to acute; floral bracts (broadly) ovate to (broadly) obovate, 0.3–3 cm long, obtuse to acute, caducous; bracteoles ovatetriangular to narrowly triangular, 0.5–1.6 cm long, acute; bracts, bracteoles, and sepals glaucous. Flowers orange to red, generally erect, 5.5–9 cm long; sepals greenish to pinkish, narrowly triangular, 1–2.5 by 0.4–0.6 cm, acute; corolla orange to pale pinkish or brownish, 4–6 cm long, petals erect, narrowly ovate-triangular, 3.5–5 by 0.5–1.1 cm, apex acute; staminodes 4, orange-red to red, sometimes spotted, 5.5–9 cm long, free part narrowly obovate, 1.5–4.5 by 0.5–1 cm, apically patent; stamen orange-red to red, free part narrowly elliptic-obovate, 2.5–3.5 by 0.4–0.8 cm, theca 0.9–1 cm long; style orange-red to red, free part obliquely narrowly obovate-elliptic, 2–2.5 by 0.2–0.5 cm. Fruit green, maturing brown, ovoid to ellipsoid or obovoid, 2.5–6 by 2–4 cm. Seeds subglobose to broadly ellipsoid, 3.5–7 by 4–6 mm.