Stems slender, erect, 3–12 dm from a short, stout rhizome; lvs mostly near the base, 2–5 dm × 6–20 mm, narrowed to the base, strongly nerved, the upper much reduced; panicle 1–6 dm, each branch ascending, bearing a raceme of 3–10 fls; bracts ovate, acuminate, 5 mm; pedicels 5–10 mm; tep 12–17 mm, acuminate, 3 lanceolate, 3 lance-ovate, each with 2 round glands just above the claw-like base; fr conic, acuminate, 12–18 mm; 2n=52. Bogs and marshes on the coastal plain; Va. to Fla. and La. July, Aug.
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