Plant robust.. Tuber depressed-globose, up to 30 cm. in diameter.. Cataphylls oblong-lanceolate, 30–49 cm. long, 5–11 cm. broad, pinkish white with green blotching.. Petiole 1–2.5 m. long, ± 4 cm. in diameter, purple, liver-coloured or pinkish with grey-green to green spots; ultimate leaf-lobes obovate, acuminate, 7–20 cm. long, 3–7 cm. broad, bright to dark glossy green.. Inflorescence appearing just before leaf, up to 2 m. tall; peduncle 30–100 cm. long, 1–2 cm. in diameter, colour similar to petiole.. Spathe 29–50 cm. long; tube obliquely ovoid to obovoid, gradually constricted towards apex, 8–15 cm. long, 5.5–7.5 cm. in diameter, outer surface dull olive green with whitish mottling, inner surface densely covered towards base with filamentous to subulate projections up to 4 mm. long, dull dark purple; limb ovate-triangular, acuminate, margins undulate, 19–34 cm. long, 12–25 cm. broad, suberect with reflexed apex, dark liverish purple on inner surface, becoming paler at base.. Spadix 38–92 cm. long, longer than spathe; sterile appendix elongate-conic, slightly narrowed towards base, 30–83 cm. long, 1.4–5 cm. in diameter near base, 0.4–1.1 cm. in diameter near apex, ± smooth or shallowly ridged longitudinally near base, dull to glaucous, greyish to liverish purple, paler than spathe-limb; staminate part ± obconic, narrowed basally, 3–4.5 cm. long, 1.4–4 cm. in diameter; pistillate part cylindric, 2.5–5 cm. long, 1.5–3 cm. in diameter, usually contiguous with staminate part, pistils usually ± distant from one another, sometimes congested.. Stamens free, pink to orange, ± 3.5 mm. long; filaments 1.5 mm. long; anthers 2 mm. broad.. Pistil ± 6–6.5 mm. long; ovary 4–5 mm. in diameter, narrowed apically (2–)3(–4)-locular; ovules solitary in each locule; placentation basal; stigma 3 mm. long, 4–4.5 mm. in diameter, deeply (2–)3(–4)-lobed, lobes broadly conic and acute, bright orange.. Fruit unknown.
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A herb. It dies back during the dry season and then produces a leaf on a long leaf stalks during the wet season. The tuber can be 20-30 cm across. The leaf can grow 1-3 m tall. The leaf stalk is 1-2.5 m long and 2-4 cm wide. It is green with darker green spots. The leaf blade can be 2 m across. The flower develops before the leaf. The flower can be 2.5 m tall and a flower stalk up to 1.5 m long. The spathe is 25-60 cm long and has a constriction.
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