- La Cumbre, in high forest on top of rocky hill bordering Rio Pusila1
- Lakeview Muncipal park, Manistique.1
- Leelanau Twp, Soper Natural Area, one mile SW of Northport on Johnson Rd. Along Johnson Rd., 0.5 mi west of M-22 intersection, in old field near junk pile.1
- Leoni Township, shore of Gillett Lake1
- Limestone hills near Tehuacan1
- Little Harbor, ca. 7 mi. SSW of Thompson1
- Loma Larga to summit, Volcán de Chiriqui1
- Ludington, Cartier Park, Pere Marquette Township, Section 101
- M.C.R.R., Ann Arbor1
- Manistique Dunes.1
- Matthaei Botanical Gardens. Radrick Forest.1
- Menominee1
- Meridian Twp.1
- Midland1
- Midland, Michigan1
- N of fishing site parking lot.1
- Near Brevort Lake.1
- Near Port Huron, Michigan1
- Near Rockwood.1
- Near peak, Volcán de Chiriquí1