Potamogeton amplifolius Tuck.
Annotated by Robert R. Haynes, 1995.

Idaho: Bonner County: Panhandle NF, Bottle Lake RNA, ca 10 miles N of Nordman, 2 miles W of Priest Lake. Elev. 2800 ft.
T62N R04W S20
Datum: WGS 84. Uncertainty: 1138 meters. Coordinate Source: Calc. from TRS. Updated PLSS from T37N to T62N.
Ca. 15 acre wetland w/ central, doughnut-shaped fen that is ca. 20m wide that surrounds a central pool (to 6 m deep) and is surrounded by a shallow moat (0.1 to> 1 m deep) which is dominated by Nuphar polysepalum and Potamogeton natans. Numerous downed and erect snags on central mat, mostly <10 in DBH. Moss layer dominated by Sphagum on the margins w/ Polytrichum in center. Ground layer dominated by low-growing Drosera rotundifolia, Viola macloskeyi, Lycopus uniflorus, Vaccinium oxycoccos, and Carex limosa. Most of mat dominated by C. lasiocarpa, C. rostrata, Kalmia microphylla, and Calamagrostis canadensis. Surrounding forest dominated by Thuja plicata, Tsuga heterophylla, and Pinus monticola. Scattered, rotted submergent in water > 1 m deep in the central pool w/ scattered N. polysepalum. Note: Plant material from 1987. Phenology: Uncertain.

R. Bursik 989B, May 17, 1988
With M. Mancuso
ID, Accession: 96501, Barcode: ID006394