Oenothera rhombipetala Nutt. ex Torr. & A.Gray
Family: Onagraceae
four-point evening-primrose,  more...
[Oenothera heterophylla var. rhombipetala Spach,  more]
Oenothera rhombipetala image
Hugh H. Iltis  
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, 16"-40" tall forb
Leaves: linear to lance-like, alternate
Flowers: yellow, 4-parted, 1/3"-1 1/4" wide, petals elliptical to oval; inflorescence a 3"-12" dense, terminal spike; blooms June-Sept.
Fruits: mostly linear, usually curving capsule; seeds without tufts of hair at the top,
Habitat: fields, prairies; in sandy soil
Oenothera rhombipetala image
Robert W. Freckmann  
Oenothera rhombipetala image
Derek Anderson  
Oenothera rhombipetala image
Robert W. Freckmann  
Oenothera rhombipetala image
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