- Reru, Char, Zaskar1
- Roscommon1
- Rualing, Chenab Valley, Lahul, Kangra, Punjab1
- S 1/2 Sec. 2 T41N-R16W. 2 mi. NW of Manistique.1
- SE 1/4 sec. 1, T27N, R8W, ca. 3 mi. NW of Kalkaska.1
- Safed Kuh, Province of Luristan1
- Schoolcraft1
- Scio1
- Shiawassee1
- Small roadside turnout on northeast side of US-23 by Mill Creek, about 3 mi. southeast of Mackinaw City.1
- South Manitou Island at Four Corners.1
- T27N,R10E,sec.30 4 1/2 mi. north of Harrisville, near lighthouse.1
- T5S, R1W, section 18; near cul-de-sac on road to Bundy Hill Estates, (off U.S. 12). About 18 km NE of Hillsdale.1
- T6N, R2E, SE-1/4 of Sec.23 West side of Morrice Rd., 0.6 mi. south of intersection with Brewer Rd.,1
- T8S, R4W, section 9; W. side Brott Rd. S. bank St. Joseph River. About 18 km SW of Hillsdale.1
- University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi. northeast of Ann Arbor1
- University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi. northeast of Ann Arbor, at S. end of Gardens1
- Van Buren1
- across from U.S. Post Office in the Village of Wheeler ca. 1/4 mi. N. of M-46 ca. 2 mi. E. of Breckenridge. Wheeler Twp. T12N, R1W, Sec.21 SW1/41
- at NW cor. of M-33 and M-72 in town of Fairview. Comins Twp. T27N, R3E, Sec. 15, SE1/41