Calamagrostis tacomensis K.L. Marr & R.J. Hebda
Annotated by David Giblin, 11 Aug 2023. Sources: Flora PNW, 2nd.

Washington: Chelan County: Okanogan-Wenatchee National Forest. Pyramid Mountain. From west flank above the continuous treeline to the east flank, including the summit area and the south side above the continuous, plant-free scree field. Elev. 2505 m.
48.07964° N, 120.56785° W
Datum: WGS 84. Uncertainty: 200 meters. Coordinate Source: GPS.
Open, exposed area with combination of rocky, north-facing ridgeline, fellfields dominated by grasses and sedges, and talus areas of stabilized soil. Scattered on west slope; cespitose; plants robust. Phenology: Flowers.

Erik Ertsgaard 23-83, Jul 19, 2023
With Inthone Chao, Nick Gjording and David Giblin
WTU, Accession: 457086, Barcode: WTU-V-109974