Plants with ± numerous, stout, bushy-branched stems from base, to 45 dm. Leaf blades 10–18 × 0.5–1.5 mm, subcoriaceous, margins loosely inrolled, apex obtuse to rounded-apiculate. Inflorescences with terminal dichasium 3–15-flowered. Sepal apices shortly apiculate to acute. Capsules cylindric.

Flowering spring–mid summer (Apr–Jul). Moist habitats, open stream banks, pond margins, low pinelands, ditches, coastal plain; 0–300 m; Ala., Fla., Ga., N.C., S.C.