Calliergon giganteum (Schimp.) Kindb.

Montana: Sanders County: Lolo National Forest. About 20.5 air miles north-northeast of Thompson Falls, 0.75 mile east-northeast of Fishtrap Lake. Elev. 3900 ft.
47.8721° N, 115.1811° W
Topographic Position: valley bottom. Hydrologic Regime: permanently saturated. Canopy Cover: trees 20%, shrubs 10%, herbs 50%. Aspect: east. Slope: 1°. General vegetation type: Edge of fen dominated by sedges and low shrubs. Dominant associated plants: Carex utriculata, Betula nana, Dasiphora fruticosa, Carex cusickii, Tomentypnum nitens, Salix candida. On saturated soil, transitional from peat to organic soil. In depressions of hummucky ground under substantial sedge canopy. Color: light to medium green. Growth Habit: turf among other mosses. Abundance: uncommon. Substrate: terricolous.

Craig T. Odegard 163, Oct 1, 2011
WTU, Barcode: WTU-B-076634