Herbs, perennial, cespitose, 1–2.5 dm. Culms erect, terete, 1–2 mm diam., smooth. Cataphylls 0–1, maroon or dark green, apex acute. Leaves: basal 0–1, cauline 1–3; auricles 1–1.5 mm, apex rounded, scarious; blade maroon or dark green, terete, 1–12.5 cm × 0.5–1.5 mm. Inflorescences terminal panicles of 3–50 heads, 2–8 cm, branches ascending to spreading; primary bract erect; heads 2–10-flowered, obpyramidal, 2–5 mm diam. Flowers: tepals green to straw-colored, lanceolate, 1.8–2.3(–2.5) mm, apex sharply acuminate; stamens 3, 1/2 filament length. Capsules exserted, straw-colored, 1-locular, narrowly ellipsoid to lanceoloid, 2.8–3.7 7(–4.2) mm, apex acute, valves separating at dehiscence. Seeds ellipsoid, 0.3–0.4 mm, not tailed; body clear yellow-brown.

Phenology: Fruiting summer.
Habitat: Marshy shores, in small streams, swamps, wet clearings, spring runs, commonly in very soft mucky substrates
Elevation: 0–700 m

Distribution

• Generated Map
• Legacy Map

Ala., Ark., Del., Fla., Ga., Ill., Ky., La., Md., Miss., Mo., N.J., N.Y., N.C., Pa., S.C., Tenn., Tex., Va., Mexicos (Chiapas), Central America (Honduras).

Discussion

Selected References

None.

Lower Taxa

None.