Moderately robust herb to c. 1 m tall; corm hemispheric, to c. 20 cm diam. Leaves: petiole ±smooth, very variable in colour, blackish purple to green, variously mottled whitish and chocolate brown; rachises 2-or 3-times forked, with ultimate rachillas rather loosely leafletbearing; leaflets broadly ovate to lanceolate, acuminate. Inflorescence fragrant to smelling of fermenting fruit, elevated on a slender peduncle similar to petiole, to c. 80 cm tall; spathe ±ovate when flattened, convolute below distal part, narrow, erect, 8–36 cm long, with margins sometimes reflexed about midway along length, externally off-white to pale brown, plain or blotched and speckled with any to all of black, dark green, pale green, dark brown and white, internally off-white and towards base yellowish and verruculose (?always); spadix subcylindric, tapering, subequalling to shorter than spathe, c. 6–27 cm long; female zone 0.5–2 cm long; male zone and appendix subequalling each other, c. 3–13 cm long.
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