Home Onagraceae Oenothera

Oenothera biennis L.

Common Name: COMMON EVENING-PRIMROSE
Coefficient of Conservatism: 2
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt B-Forb

Usually on dry often sandy roadsides, fields, clearings, and disturbed ground; on stream banks and at borders of forests; rarely on beaches or dunes.

Perhaps the most 'weedy' species, this can be a large plant, over 2 m tall and branched, when growing in rich soils. 

A. A. Reznicek

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Counties
Alger
Allegan
Arenac
Baraga
Barry
Bay
Benzie
Berrien
Calhoun
Cass or Van Buren
Charlevoix
Cheboygan
Chippewa
Clinton
Crawford
Delta
Dickinson
Emmet
Genesee
Gogebic
Grand Traverse
Hillsdale
Houghton
Ingham
Iosco
Iron
Isabella
Jackson
Kalamazoo
Kalkaska
Kent
Keweenaw
Lapeer
Leelanau
Lenawee
Livingston
Luce
Mackinac
Manistee
Marquette
Mason
Menominee
Midland
Monroe
Montcalm
Montmorency
Muskegon
Newaygo
Oakland
Oceana
Ontonagon
Oscoda
Ottawa
Roscommon
Saginaw
Schoolcraft
St. Clair
Van Buren
Washtenaw
Wayne

Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January, 4, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/1758