2n = 24

2n = 24

Similar to in habit but stouter in all its parts. Lf-lamina 20–50 cm. × 2.5–4 mm.; primary nerves us. > 3, us. at least 1 and often 2 nerves in addition to the median and the 2 marginal ones; interstitial nerves us. > 6, often 8–9, on each side of median; cross veins often ∞ and extending across only 2–3 interstitial nerves, giving a closer and less regular pattern than in . Erect stems slender and flattened, the "peduncular" internode narrower than the spathe. Spathe-like sheath c. 1.5–2.5 cm. × 3–4 mm. (folded width), its margins squarely truncate at the top and its terminating lamina 3–5 cm. × 2.5–3.5 mm. Spadix rarely shorter than spathe; retinacula often 4 or more on each side, obliquely ovate, c. 1 × 1 mm. and c. 2–2.5 mm. apart. Stamens and carpels closely packed, carpels often > 6 and anther-sacs about twice their number. Achene unknown. 2n = 24.