- Along US-Highway 41, north of Baraga.1
- Along shore of Keweenaw Bay, ca. 3 mi. NNE of L'Anse.1
- At Arnheim.1
- At west end of Lake Michigamme.1
- Between M-28 and the railroad tracks at Watton.1
- Big Lake, NW side of; ca 5.5 mi NW of Covington1
- Ca. 7 mi. NE of Skanee, Lake Superior Shore, Point Abbaye1
- Canyon Falls of Sturgeon River1
- East of Sturgeon River, ca. 7.5 miles WSE of Baraga. Ca. 2.5 miles NE (downstream) of Prickett Dam.1
- East side of Huron Bay at Lightfoot Bay.1
- East side of Pequaming Peninsula1
- East side of Sturgeon River, ca. 7.5 miles WSW of Baraga, ca. 0.5 miles NE (downstream) of Prickett Dam.1
- Falls River west of L'Anse.1
- Ford Forestry Center,1
- Ford Forestry Center, 4 mi. N. of M-28 on US-41.1
- Ford Forestry Center, near Alberta village.1
- Ford Forestry Center, opposite, Alberta1
- George Lake.1
- Growing in mud of slough at Pequaming.1
- Just SW of Big Lake, ca. 5.5 mi. NW of Covington.1