Dulichium arundinaceum (L.) Britt.

Idaho: Bonner County: Hager Lake, privately owned, ca. 2 mi N of Priest Lake Ranger Station off Hwy 57. Elev. 2420 ft.
48.600112° N, 116.97401° W,
Datum: WGS 84. Uncertainty: 1330 meters. Coordinate Source: Georeferenced.
1.5 hectare kettle lake surrounded on S side by 0.5 h floating mat dominated by C. lasiocarpa, C. rostrata, Kalmia microphylla, Vaccinium oxycoccos, Drosera anglica, and D. rotundifolia, which is bordered on the upland side by a moist, moss-covered zone w/ K. microphylla, Lycopus uniflorus, Agrostis scabra, and V. oxycoccos which grades into a dense stand of 1.5 m shrub Spriaea douglasii. This zone is surrounded by trees of Amelanchier alnifolia and Crategus douglasii w/ Agrostis stolonifera and Calamagrostis canadensis in the understory. Extensive fen to N of the lake characterized by C. vesicaria, Salix spp., and scattered patches of Pinus contorta. Surrounding forest mixed with Pipo, Pico,Psme, Thpl, Pimo, and Angr. Water chem: pH 6.9, conductivity 20 mmhos, hardness 9.2, Ca 2.5 Mg 0.6, K 0.9, alkalinity 6.5 (all mg/L). Abundance: prominent on floating mat w/ c. lasiocarpa and C. rostrata. Phenology: Fertile.

D. Henderson 5671, Jul 15, 1980
ID, Accession: 106358, Barcode: ID021007