Stamens 6; filaments 2–2.5 mm. long, lilac but whitish near the thicker base; anthers 0.5–0.6 mm. long and 0.3–0.4 mm. wide, brownish yellow, but turning black when withering.
Ovaries 2–4, green with 2–10 ovules.
Follicles green to somewhat bluish (but beak whitish at least near die tip), 2–3 mm. long, including a ± 1 mm. long curved beak, and 0.5–0.6 mm. wide.
Seeds elliptic, 1.5–2.5 mm. long and ± 0.5 mm. wide, with a double testa, not longitudinally ridged.
Tuber globular to conical, 6–12 mm. long and 4–10 mm. in diameter, with very numerous whitish slender roots.
Flowers white, often drying a bluish white, rather laxly set on unbranched somewhat unilateral spikes on slender peduncles; peduncles 5–15 cm. long and 1–1.5 mm. thick above, green but inflorescence-axis and base white; spathe 6–10 mm. long, greenish, usually early caducous.
Leaves usually 5–10 per tuber; petiole 5–20 cm. long and 0.2–0.6 mm. thick; blade narrowly oblong to lanceolate, 2–5 cm. long and 4–10 mm. wide, with 5–9 parallel lateral nerves, floating on the surface of the water; base cuneate to truncate, tip obtuse; primary leaves occasionally produced, 1–2 cm. long, linear, without blade.
Tepals 2, white and shiny, but often with a lilac tinge, ligulate, 3.5–5.5 mm. long and 1–2 mm. wide, 1-nerved.
Spike 1–2 cm. long and 5–10 mm. wide with tepals spreading, the flowers usually inserted on one side of the axis, but at maturity often more cylindrical, only 7–15-flowered.
A delicate, fugitive plant. Rhizome tuberous. Leaves linear, petiolate and floating, seldom subulate and submerged. Petiole up to 170 mm long. Spike simple, few-flowered. Perianth segments deciduous, small. Flowers white.
Small tuberiferous herbs 3-12 cm high, with the upper parts fugaceous. Tubers developing new plants laterally, globose, up to 1 cm in diam. brown, densely covered above with long, fine, white matted roots. Leaves: the primary(representing the petioles only)submerged, awl-shaped falcate, about 2 cm long, 1 mm in diam., present in young seedlings; later leaves forming a long filiform petiole and a floating lamina, linear-oblong, 2-4 cm long and 5-6 mm broad, apex and base obtuse. Spikes simple, about 9-flowered, short at first, elongating in fruit, up to 2 cm long; spathe spotted, membranous; flowers at first dorsiventrally arranged in 2 rows, afterwards the rhachis twists in a zig-zag fashion and the arrangement then appears more cylindrical; perianth-segments 2, white, oblong, 5 mm long, deciduous, apex obtuse or emarginate. Stamens about 6, filaments narrowly subulate, 1-2 mm long, anthers yellow, turning black. Carpels c.3, whitish to purplish or bluish, transparent, with 4-6 basal ovules; style about as long as the ovary. Follicles turbinate, 1-4 seeded; seeds black, shiny, fusiform, 2 mm long.
Small waterworn pools in sandstone ridges or granite.