Herbs, submersed or emersed on wet substrates, 0.5–3(–5) cm. Stems ascending or prostrate, branched. Leaves reddish green; stipules lanceolate, 0.5–0.6 mm, margins dentate, apex acute; petiole (0–)1–3 mm; blade narrowly oblong to ovate, 3–8 × 1–3 mm, base cuneate to rounded, apex rounded to obtuse. Pedicels 0–0.4 mm, erect. Flowers: sepals (2–)3, equal, oblong-ovate, 1.1–1.3 × 0.3 mm; petals 3, pinkish, elliptic or ovate, 1–1.5 × 0.5 mm; stamens 3; styles 3. Capsules globose, 3-locular, 1.1–1.7 mm diam. Seeds (6–)10–15 per locule, oblong, straight or curved to 30°, 0.3–0.5 × 0.1–0.3 mm; pits ± round, length 1–2 times width, in 6(–8) rows, (9–)14–17 per row.

Phenology: Flowering summer–early fall.
Habitat: Muddy shores, often of ponds or reservoirs.
Elevation: 0–1500(–2200) m.

Distribution

• Generated Map
• Legacy Map

B.C., Ala., Ariz., Calif., Ga., Ill., La., Mont., Nebr., Nev., N.Mex., Ohio, Okla., Oreg., Tex., Wash., Wyo., Mexico (Baja California), South America (Argentina).

Discussion

Selected References

None.

Lower Taxa

None.