Carex scopulorum T. Holm var. prionophylla (Holm) L.A. Standl.
[= Carex scopulorum var. prionophyllum]
Annotated by J. Mastrogiuseppe, May 2006. Sources: Flora of North America 23: 400.

Idaho: Shoshone County: BLM land; Pinchot Marsh RNA, 24 miles E of Clarkia, ID near Freezeout Saddle, just E of Orphan Pt.
T43N R04E S26 SW
Datum: WGS 84. Uncertainty: 569 meters. Coordinate Source: Calc. from TRS. Updated county from Clearwater to Shoshone.
Several acre riparian meadow system drained by shallow, narrow streams w/ areas of well-developed Sphagnum mats dominated by Carex prionophylla, C. scopulorum, Eleocahris palustris, Caltha leptosepala, and Dodecatheon jeffreyi. Scattered Sphagnum hummocks formed by trees of Abies lasiocarpa, Picea engelmanii, and Tsuga mertensiana are characterized by Ledum glandulosum and Kalmia microphylla. Surrounding forest understory characterized by Arnica latifolia, Vaccinium scoparium, V. globulare, Luzula hitchcockii, and Menziesia ferruginea on more mesic sites. Abundance: prominent on Sphagnum mats, rhizomatous. Phenology: Fertile.

R. Bursik 1574, Aug 22, 1988
With K. Beall, M. Simpson
ID, Accession: 98954, Barcode: ID020025