Carex comosa Boott

Idaho: Boundary County: [locality and coordinates withheld; status in Idaho: S1 (Critically Imperiled; IDNHP)],
Ca 100 acres of open water with extensive littoral zone with dense rhizomatous stands of Nuphar polysepalum, Brasenia schreberi, and Potamogeton amplifolius surrounded by floating Sphagnum mats to the N and E. Shrub carr community on mat dominated by rather dense stand of Betula pumila, Alnus incana, Salix spp., and Spiraea douglasii with an understory of Carex lasiocarpa and C. rostrata. Water chem: pH 7.6, alkalinity 45 mg/L; conductivity 97 mmhos, hardness 42.8 mg/L CaCO3. Abundance: prominent caespitose growing as rooted emergent aquatic w/ Typha latifolia in shallow moat and on saturated Sphagnum-covered mat w/C. rostrata, C. lasiocarpa, and Menyanthes trifoliata beneath Alnus sinuata/B. pumila overstory. Phenology: Flowers.

R. Bursik 1605B, Sep 5, 1988
With F. Rabe
ID, Accession: 99360, Barcode: ID016400