Stems glabrous. Leaves alter­nate, usually not fascicled; stipules symmetrical; petioles of basal leaves 0.7–2.5 cm, those of distal leaves 0.7–6 cm; blade (2–)4–10 cm, apex eglandular-mucronate, surfaces shiny, glabrous. Flowers: anthers subequal, 1.2–1.4 mm; ovary 14–20 mm, apex somewhat broader, glabrous or with scattered hairs, stigma usually exserted beyond anthers, rarely as long as anthers. Capsules 25–40 × 3–4 mm, pedicel 35–90 mm. Seeds 16–18 per locule. 2n = 16.

Phenology: Flowering summer-early fall.
Habitat: Wet places, along slow-moving rivers, streams, canals, ditches, often growing into main channels as aquatic weeds.
Elevation: 0–900[–3000] m.

Distribution

• Generated Map
• Legacy Map

Ala., Ark., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Miss., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va., South America (Venezuela).

Discussion

Selected References

None.

Lower Taxa

None.