- Wilderness Arboretum, ca. 14 miles NW of Bad Axe, Hume Township.3
- Along the Maitland River ca 3-9 km SW of its mouth at Goderich.2
- At Sand Point2
- Bayport.2
- Caseville.2
- Hume Township, "Wilderness Arboretum," ca. 14 miles NW of Bad Axe2
- Near Port Austin.2
- Ohio2
- Port Austin, Lake Huron Shores2
- Sand Point2
- Sand Point.2
- Unionville.2
- Wilderness Arboretum, ca. 14 miles NW of Bad Axe, Hume Twp.2
- along Lake Huron, Caseville County Park, Caseville.2
- near Rush Lake2
- near Sebewaing2
- shore of Wildfowl Bay near NE corner sec. 30, McKinley Tp., ca. 6 mi. SW of Caseville.2
- "Wilderness Arboretum" Hume Tp. Ca. 14 mi. NW of Bad Axe.1
- "Wilderness Arboretum" ca. 14 mi. NW of Bad Axe (a tract of 120 acres of alternating sand ridges and shallow swales), in Hume Twp.1
- "Wilderness Arboretum" ca. 14 miles NW of Bad Axe in sec.7, Hume Township.1