Family: Onagraceae
northern evening-primrose, small-flowered evening-primrose
[Oenothera cruciata var. sabulonensis Nutt. ex G.Don, more...]
Merel R. Black
Ray Francies
University of Wisconsin - Madison (WIS-VP)
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, 2'-6' tall forb, mostly hairless or only finely fuzzy
Leaves: lance-like to oblong, alternate
Flowers: yellow, 4-parted, 3/4"-1 1/2" wide; inflorescence a terminal, usually unbranched spike nodding at the tip
Fruits: capsule slightly tapering towards top; seeds without tufts of hair at the top
Habitat: disturbed sites
Plants: erect, biennial, 2'-6' tall forb, mostly hairless or only finely fuzzy
Leaves: lance-like to oblong, alternate
Flowers: yellow, 4-parted, 3/4"-1 1/2" wide; inflorescence a terminal, usually unbranched spike nodding at the tip
Fruits: capsule slightly tapering towards top; seeds without tufts of hair at the top
Habitat: disturbed sites
Fairly common on shores and beaches as well as many other open, sandy or rocky habitats including river banks, roadsides, railroad tracks, cliffs, gravel pits, woodland clearings, farm fields, pastures, and sometimes in sedge meadows
Floristic Rating: Coefficient of Conservatism = 4
Ray Francies
Merel R. Black
from USDA Plants Website
Aaron_Carlson