Dryopteris filix-mas (L.) Schott
Annotated by Curtis R. Bjork, Sep 2002.

Idaho: Bonner County: Panhandle National Forest, Hager Lake, privately owned, ca 2 miles N of Priest Lake Ranger Station off Hwy 57. Elev. 2420 ft.
48.597018° N, 116.971307° W,
Datum: WGS 84. Uncertainty: 587 meters. Coordinate Source: GeoLocate.
1.5 hectare kettle lake surrounded on S. side by 0.5 hectare floating mat dominated by Carex lasiocarpa, C. rostrata, Kalmia microphylla, Vaccinim oxycoccos, Drosera anglica, and D. rotundifolia, which is bordered on the upland side by a moist, moss covered zone with K. microphylla, Lycopus uniflorus, Agrostis scrabra, and V. oxycoccos which grades into a dense stand of 1.5 m shrub Spirea douglasii. This zone is surrounded by trees of Amelanchier alnifolea and Crategus douglasii with Agrostis stolonifera and Calamagrostis canadensis in the understory. Extensive fen to north of lake characterized by Carex vesicaria, Salix spp. and scattered patches of Pinus contorta. Surrounding forest mixed with Pipo, Pico, Psme, Thpl, Pimo, and Abgr. Water chemistry: 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: Few individuals in small opening in S. douglasii stand on SW corner of lake, among dead snags with Carex spp. and Lycopus uniflorus. Substrate moist, little moss accumulation. Phenology: Uncertain.

R. Bursik 385, Jul 16, 1987
ID, Accession: 99416, Barcode: ID002289