Ratibida pinnata (Vent.) Barnhart
Coefficient of Conservatism: 4
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Native in southern Michigan and Menominee Co. in or near prairie remnants (including roadsides and fencerows), at margins of swamps, and in dry open ground. Most northern occurrences represent garden escapes or other waifs along roadsides or in rocky fields.

Specimens of Rudbeckia laciniata with drooping rays might be mistaken for this species, but differ in the essentially glabrous stems and peduncles and the greenish to brownish disk. Other Rudbeckia species with purplish disk and pubescent stem may have to be checked carefully for absence of chaff at the base of the ray flowers if they are puzzling; see also note under Rudbeckia.


Barry County
Berrien County
Branch County
Calhoun County
Cass County
Chippewa County
Hillsdale County
Ingham County
Isabella County
Jackson County
Kalamazoo County
Kent County
Keweenaw County
Lenawee County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Mason County
Menominee County
Monroe County
Schoolcraft County
St. Joseph County
Van Buren County
Washtenaw County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. October 6, 2022. https://michiganflora.net/species.aspx?id=434.