Tuber 6–10 cm. long, 3–3.5 cm. in diameter with numerous thick fleshy roots up to 5 mm. thick or more.. Cataphylls several, ovate-oblong, 2–12 cm. long, subacute to obtuse, membranous.. Leaf unknown.. Peduncle erect, smooth, unarmed, 14–40(–60) cm. long, 2–4 mm. in diameter, glaucous.. Spathe 2–4 cm. long, 0.6–1 cm. in diameter, glaucous red.. Spadix 1.5–3 cm. long, cylindric, staminate part 1–2 cm. long, 0.3–0.5 cm. in diameter, pistillate part 0.6–1 cm. long, 0.5–0.8 cm. in diameter.. Stamens pale yellow, dehiscing by apical pores.. Pistils mauve; ovary 2 mm. in diameter; stigmas sessile, circular, 1 mm. in diameter.
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