Robert W. Freckmann Herbarium


  Oenothera perennis L. image
Photographer: Merel R. Black           

Botanical Illustration

Emmet J. Judziewicz

Emmet J. Judziewicz
Family Onagraceae
Oenothera perennis L.
small evening-primrose, small sundrops
Oenothera: from Greek oinos, "wine," and thera, "to imbibe," because an allied European plant was thought to induce a taste for wine
perennis: perennial
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
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Status: Native
Plant: erect, perennial, 4"-24" tall forb; stems usually unbranched
Flower: yellow, 4-parted, 1/3"-3/4" wide, opening one by one and becoming erect, petals notched; inflorescence a terminal, usually unbranched spike nodding at the tip; blooms May-July
Fruit:4 -angled capsule, elliptical to oblong tapering toward the base; seeds without tufts of hair at the top
Leaf:lance-like to elliptical, alternate
Habitat: dry to moist; prairies, meadows, open woods; in sandy soil
(Glossary)

More Information Natural Communities Herbarium Specimens
All Oenothera list Google- Images or Text
Synonyms 
Kneiffia perennis (L.) Pennell
Kneiffia pumila (L.) Spach
Oenothera perennis L. var. rectipilis (S.F.Blake) S.F.Blake
Oenothera perennis L. var. typica Munz
Oenothera pumila L.
Oenothera pumila L. var. rectipilis S.F.Blake

         
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