Catabrosa aquatica (L.) P. Beauv.
Annotated by Charles F. Williams, 7 May 2018. Sources: Intermountain Flora/Grasses of Colorado (Shaw 2008). Remarks: ID'd with Janet Bala, Pam Reschke

Idaho: Butte County: Lower North Creek canyon on SW flank of Lemhi Range, Salmon-Challis National Forest Rd 167. Elev. 2000 m.
43.975° N, 113.039° W; T7N R28E S31
Datum: WGS 84. Uncertainty: 201 meters. Coordinate Source: Specimen Label.
Along shrub- and tree-lined stream in sagebrush zone, localized boggy site in full sun downstream from historical & active mining area.In saturated moss bed. "Foliage pale green." Rhizomatous < 2 dm tall; panicle, short glumes 1.8/1.2 mm, lemma dark brown, 3-nerved, membrane at tip scarious, palea about the same, anthers 1.5 mm, tips purple, large ovary. Phenology: Fertile.

Barbara Ertter 22640, Jun 18, 2016
With Beth Corbin, Sarah Herzog, and Jim Torell
IDS, Accession: 2017.016, Barcode: IDS0072146