Stems 10–30 cm. Leaves: stipules persistent, those on proximal portion of stem tightly clasping or slightly enlarged; 0.2–0.5 mm wide. Inflorescences: peduncles with flowers and/or fruits 4 cm or more apart. Fruits common.

Phenology: Flowering summer.
Habitat: Calcareous waters of ponds, lakes, and streams
Elevation: 0–915 m

Distribution

• Generated Map
• Legacy Map

Greenland, N.W.T., Yukon, Alaska, Europe, Asiaasia.

Discussion

No specimens have been seen from British Columbia or Nunavut, but the subspecies is to be expected there.

Selected References

None.

Lower Taxa

None.