Matteuccia struthiopteris var. pensylvanica (Willdenow) C.V. Morton
Dryopteridaceae
Lee, Michael (16/Aug/2015)
Lee, Michael
MDL7069
2015-08-16
16 August 2015
Whitfeld, Timothy
United States, Minnesota, St. Louis, Boundary Waters Canoe Area Wilderness. On the shore of Sunday Bay, Crooked Lake, in rolling to rather rugged bedrock terrain 20 miles north of Ely.
48.1907301748 -91.8928899699
5338092N 582280E; T66N R12W sec20
381 meters
1250 feet
Local in a vernal ash swamp bordering the south end of a long, narrow, and fairly shallow bay. Canopy of large Fraxinus nigra, with occasional Acer saccharinum, Abies balsamea, and Picea mariana. Shrub layer includes Alnus incana, Spiraea alba. Partial sun to full shade. Wet muck over gravelly clay. Loose patches.
Additional associates include Carex tuckermanii, C. crinita, C. vesicaria, C. intumescens, C. arcta, Glyceria striata, Poa palustris, Onoclea sensibilis, Equisetum arvense, E. sylvaticum, Iris versicolor, Persicaria sagittata, Rubus pubescens.