Oenothera pilosella Raf.
Coefficient of Conservatism: *
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Ad P-Forb

Oenothera pilosella flowers A. A. Reznicek flowers

Wet meadows, dry to moist ground of fields, roadsides, along railways, open savannas, clearings, ditches. Some occurrences in the southern half of the Lower Peninsula are in intact natural wetland communities, but it is likely that many of our collections of this showy and commonly cultivated species represent escapes. The first collection was from Pearl Beach in St. Clair Co. in 1904, and it still occurs in natural wet meadows and prairies near Lake St. Clair.

Readily distinguished in our area by the long, spreading pubescence on stems and inflorescence, compared to the glabrous or glabrate (at most slightly glandular-pubescent) stems and inflorescences of O. fruticosa and O. perennis.


Berrien County
Cheboygan County
Chippewa County
    Only on Drummond Island
Genesee County
Huron County
Leelanau County
Lenawee County
Mackinac County
Macomb County
Mecosta County
Oakland County
Ottawa County
St. Clair County
Tuscola County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. September 28, 2021. https://michiganflora.net/species.aspx?id=1770.