Onagraceae

(oh-nuh-GRAY-see-ee)
– a family in the Myrtales order –

Here in the St. Louis Area, we have 15 not-too-obscure plants that are in the Evening Primrose Family:

• Circaea canadensis (Enchanter’s Nightshade) [CC2]
• Epilobium coloratum (Purpleleaf Willowherb) [CC6]

• Ludwigia alternifolia (Seedbox) [CC4]
• Ludwigia palustris (Marsh Primrose-Willow) [CC4]
• Ludwigia peploides (Floating Primrose-Willow) [CC3]
• Ludwigia polycarpa (Many-Fruited Primrose-Willow) [CC6]

• Oenothera biennis (Evening Primrose) [CC0]
• Oenothera curtiflora (Velvety Gaura) [CC2]
• Oenothera filiformis (Longflower Gaura) [CC1]
• Oenothera laciniata (Cutleaf Evening Primrose) [CC1]
• Oenothera linifolia (Threadleaf Evening Primrose) [CC4]
• Oenothera macrocarpa (Missouri Evening Primrose) [CC7]
• Oenothera pilosella (Meadow Evening Primrose) [CC6]
• Oenothera speciosa (Pink Evening Primrose) [CC2]
• Oenothera villosa (Hairy Evening Primrose) [CC2]

[CC] = Coefficient of Conservatism