Common Name: PASTURE THISTLE
Coefficient of Conservatism: 4
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt B-Forb
Meadows, fields, clearings, hillsides, river banks, sparsely forested sites; roadsides, vacant lots, pine plantations; doubtless originally in prairie openings.
This species is very similar to C. altissimum. The heads of C. discolor run a little larger (involucre ca. 2.4–3.3 cm long in our material, compared with 2–2.7 cm in C. altissimum), but precise measurements are hard to determine. The white-flowered form [f. albiflorum (Britton) House] has been collected in Calhoun, Lenawee, Oakland, and Washtenaw Cos.
M. Demmon
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Bay |
Berrien |
Branch |
Calhoun |
Cass |
Emmet |
Genesee |
Grand Traverse |
Hillsdale |
Jackson |
Kalamazoo |
Kent |
Lake |
Lenawee |
Livingston |
Macomb |
Mecosta |
Menominee |
Midland |
Monroe |
Newaygo |
Oakland |
St. Clair |
Tuscola |
Washtenaw |
Wayne |
Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March, 17, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/285