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FNA | Family List | FNA Vol. 23 | Cyperaceae | Eleocharis

8a2. ELEOCHARIS R. Brown (subg. ELEOCHARIS) sect. ELEOGENUS (Nees) Bentham in G. Bentham and J. D. Hooker, Gen. Pl. 3: 1047. 1883 (as Heleogenus).

Plants annual or perennial, never stoloniferous, sometimes with creeping rhizomes 0.5–1 mm thick, tubers absent. Culms terete, to 90 cm × 2 mm. Leaves: distal leaf sheaths usually persistent, thinly membranous to papery. Spikelets terete, to 13 × 4 mm. Flowers: styles 2-fid or with to ca. 1/2 3-fid. Achenes biconvex or rarely to ca. 1/2 trigonous; angles keeled (costate), at least distally. Tubercles distinct from achene apex in color, texture, and form.

Species 18 (9 in the flora): worldwide, primarily New World temperate regions.

Lower Taxa


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