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Oenothera tetragona

Family: onagraceae

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• GRIN. Taxonomical details, with common names, distribution, and synonyms.

Links for Oenothera tetragona

• Annie's Annuals - Catalog page with photo, basic horticultural information, and noteworthy features. (zone 3-10) (2 photos)
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zones 3a-8b) (9 photos)
• North Carolina State University factsheet - Plant profile with horticultural details and comments (1 photo)
• Perennial Gardening on the Prairies - Maureen and Glen in Saskatchewan describe the plants in their garden with photos, descriptions, horticultural notes, and a rating. (2 photos)
• Sunlight Gardens: Oenothera tetragona 'Highlights' - Wildflower nursery catalog page with description and cultivation details. (zone 4-9) (1 photo)