Carex utriculata Boott
Annotated by Joy Mastoguiseppe, 19 Nov 2004.

Idaho: Bonner County: Lee Lake; 2 mi NE of Coolin, ID. Elev. 710 m.
T59N R04W S11 SW
Datum: NAD 27. Uncertainty: 800 meters. Coordinate Source: TRS2LL.
Ca. 5 h lake surrounded by peatland compex. Floating Sphagnum mat immediately surrounding the lake dominated by Carex lasiocarpa, C rostrata, Menyanthes trifoliata, and Kalmia microphylla. Extensive shrub carr surrounding floating mat dominated by Betula glandulosa and Spiraea douglasii. Littoral regions of the lake characterized by rhizomatous stands of several aquatic macrophytes including Potamogeton amplifolius Nuphar polysepalum in water 1 dm -2 m deep. Shrub carr distrurbed, particularly on the N side due to draining activities, although floating mat remains relatively undisturbed. Surrounding forest mixed w. Pinus contorta, Tsuga heterophylla, Picea engelmanii, Larix occidentalis, Pinus monticola, and Thuja plicata, being prominent. Water chem.: pH 7.4, hardness (mg/L) 21, conductivity 45 mmhos, Ca 6.4, Mg 1.3, K 0.8 (all mg/L). Growing with K. microphylla and B. glandulosa on saturated substrate. Abundance: prominent on floating mat but not near margins where C. lasiocarpa is dominant. Also several rhizomatous stands growing as rooted emergent aquatic in 2 dm of water w/ C. lasiocarpa and Dulichium arundinaceum present. Phenology: Flowers and Fruits.

R. Bursik 1041, May 18, 1988
With M. Mancuso
ID, Accession: 129149, Barcode: ID020458