Tuber up to 2½ cm ø. Leaves submerged, 20-50 by 1½-3½ cm; base very narrowly cuneate, apex narrowly cuneate with a blunt tip; main nerves 7 or 9, connected by numerous cross-veins at a ± 70° angle; margin flat or waved; petiole 5-35 cm. Peduncle up to 1½ m, strongly thickened towards the inflorescence. Spathe unknown, caducous. Spike up to 15 cm, very laxly flowered. Flowers very small. Tepals 2, white to cream, broadly obovate or wedge-shaped, ¾-1 by 1-1¼ mm, 1-nerved. Stamens 6, ¾-1¼ mm, filaments strongly widened towards the base and applanate. Ovaries 3, up to 1 by ¾ mm, ovules 4-6. Infructescence very dense. Fruits greenish brown, 7-8 by 2-3 mm, laterally beaked. Seeds with a simple testa; embryo 4-5 by ½ mm; plumule c. ½ mm, attached at ± 1/6 of the length of the embryo and partly covered by the margins of the cotyledon.
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