Family: Onagraceae
hairy evening-primrose
Corey Raimond
Corey Raimond
University of Wisconsin - Madison (WIS-VP)
Key to Wisconsin Oenothera villosa
- 1a.Plants dull to gray green, densely villous; sepals green to yellow green; leaf margins dentate, venation prominent subsp. villosa
- 1b.Plants flushed with red, strigillose, usually also villous; sepals red-stripe or flushed with red; leaf margins denticulate or subentire; venation not prominent subsp. strigosa
Roadsdes, along railroads, in abandoned fields and dry prairies, in ditches, cut-over woods, open fields, streambanks, highly variable.
Etymology: Oenothera: from Greek oinos, "wine," and thera, "to imbibe," because an allied European plant was thought to induce a taste for wine
Plants: erect, biennial/perennial, 2'-6' tall forb, often with dense, grayish hairs
Leaves: lance-like to oblong, alternate
Flowers: yellow, 4-parted, 3/4"-2" wide; inflorescence a stiff, terminal, usually unbranched spike; blooms July-Oct.
Fruits: capsule thickest near the base; seeds without tufts of hair at the top
Habitat: dry to moderate moisture; fields, prairies
Conservation Status: Native
Plants: erect, biennial/perennial, 2'-6' tall forb, often with dense, grayish hairs
Leaves: lance-like to oblong, alternate
Flowers: yellow, 4-parted, 3/4"-2" wide; inflorescence a stiff, terminal, usually unbranched spike; blooms July-Oct.
Fruits: capsule thickest near the base; seeds without tufts of hair at the top
Habitat: dry to moderate moisture; fields, prairies
Conservation Status: Native
Floristic Rating: Coefficient of Conservatism = 3, Wetland Indicator = FAC USDA Plants Database: Federal Distribution and detailed information including photos
Corey Raimond
Jan Anderson
Derek Anderson
