Trientalis arctica Fisch. ex Hook.
[= Lysimachia europaea]

Idaho: Bonner County: [locality and coordinates withheld; status in Idaho: S3 (Rare; IDNHP)],
Surrounded by peatland complex. Floating Sphagnum mat immediately surrounding the lake dominated by Carex lasiocarpa, C. rostrata, Menyanthes trifoliata, and kalmia microphylla. Extensive shrub carr surrounding floating mat dominated by Betula glandulosa and Spiraea douglasii. Littoral regions of the lake characterized by rhizomatous stands of several aquatic macrophytes including Potamogenton amplifolius Nuphar polysepalum in water 1dm-2 mdeep. Shrub carr disturbed, particularly on the north side due to draining activities, although floating mat remains relatively undisturbed. Surrounding forest mixed with Pinus contorta, Tsuga heterophylla, Picea engelmannii, Larix occidentalis, Pinus monticola, and Thuja plicata being prominent. Abundance; few on Sphagnum hummocks dominated by K. microphylla and B. glandulosa on NW side of lake; none flowering. Water chem.: ph 7.4, hardness (mg/L as CaCO3) 20.9, alkalinity (mg/L) 21, conductivity 45 mmhos, Ca 6.4, Mg 1.3 K 0.8 (all mg/L). Phenology: Vegetative.

R. Bursik 1047, May 18, 1988
With M. Mancuso
ID, Accession: 160809, Barcode: ID101660