Petasites sagittatus (Pursh) A. Gray
[= Petasites frigidus var. sagittatus]

Montana: Missoula County: Lolo National Forest. Elk Meadow, ca. 10 air miles SW of Placid Lake. Elev. 5665 ft.
SW1/4 sec 35 T16N R16W
Datum: WGS 84. Uncertainty: 7759 meters. Coordinate Source: Digital Map.
East end of large meadow with shallow open water dominated by sedges with marginal raised area between the sedge/Sphagnum bog and the upland forest dominated by Picea engelmanii and Pinus contorta, that is dominated in large (ca. 4 sq. meter) clumps of Salix spp., forming raised hummocks over a Sphagnum covered substrate. W/ thick Sphagnum (10 cm) over deep humus and shallow standing water Growing w/ Carex spp. Dodecatheon pulchellum, Fragaria virginiana, Petasites sagittatus, and Valeriana dioica. Flowering and vegetative shoots arising separately from shallow rhizomes. Abundance: common in some portions of the open Sphagnum mat Phenology: Flowers.

R. Bursik 075, Jun 5, 1987
With F. Rabe, P. Gier
ID, Accession: 96419, Barcode: ID149985