Annuals or perennials. Stems erect, 15–40 cm, hairy, glabrescent. Leaves hairy, glabrescent; blade base narrowly cuneate, margins entire, apex rounded. Pedicels 1.5–15 mm. Flowers: sepals 4(or 5), oblong to lanceolate, calyx bilaterally symmetric; corolla pink with pink throat or white with white throat, 2–5 mm; stamens 4, didynamous. 2n = 28.

Phenology: Flowering Jul–Sep.
Habitat: Muddy sites, pools, rice fields.
Elevation: 0–100 m.

Distribution

• Generated Map
• Legacy Map

Calif., Fla., La., S.C., Tex., West Indies (Greater Antilles, Lesser Antilles, Puerto Rico), Central America, introduced also in Mexico, South America (Colombia), Asia (China).

Discussion

Selected References

None.

Lower Taxa

None.