Locality: Within Amsterdam Sloughs Wildlife Area, Burnett County. T38N-R17W, Sections 3, 4. T39N-R17W, Sections 33, 34. 966 acres.

Abstract: Located within a sandy glacial plain, Blomberg Lake is a 68-acre bog lake surrounded by a northern wet forest. With a maximum depth of four feet, this shallow lake supports only a few aquatic plants including white and yellow water-lily, and large-leaved pondweed. The surrounding wet forest is dominated by tamarack with red maple, some black spruce, and a shrub layer of speckled alder. The understory varies locally from Labrador-tea to three-seeded sedge to alder. Further from the margin of the lake are many wetland grasses and sedges in the herbaceous layer such as blue-joint grass, drooping wood-reed, bristly sedge, American woolly-fruit sedge, yellow blue-bead-lily, sweet gale, marsh skullcap, and American starflower. Northern mesic (wet) forests are very rare in this region and the best example is in the southwest part of the site. The forest is dominated by sugar maple and red maple with lesser amounts of northern red oak, white oak, basswood, trembling aspen, and birch. The groundlayer has areas of Pennsylvania sedge, round-lobed hepatic, bracken fern, maidenhair fern, black snakeroot, bottlebrush grass, and hairy sweet cicely. Migratory waterfowl often use the lake and surrounding wetlands. Blomberg Lake is owned by the DNR and was designated a State Natural Area in 2003.

Notes: The species in this list were collected as part of the 2018 Wisconsin Botanical Foray.