Onagraceae Evening Primrose Family

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Presentation transcript:

Onagraceae Evening Primrose Family Ca4 Co4 A4 or 8 G4

Evening Primrose Family Onagraceae Evening Primrose Family 18 genera/640 species Worldwide distribution; center of diversity is SW United States and Mexico

Herbs with simple leaves, these alternate or opposite

Flowers perfect, actinomorphic, 4-partate Androecium of 4 or 8 stamens 4-lobed stigma: cross-shaped

common evening primrose - Elongate hypanthium present - Ovary inferior, of 4 fused carpels Oenothera biennis common evening primrose

Fruit a capsule

Economic importance: a few are ornamentals Oenothera pilosella prairie sundrops Fuchsia sp.

Enchanter’s nightshade Local flora: Oenothera biennis Evening primrose Circaea canadensis Enchanter’s nightshade

Epilobium hirsutum Hairy willow herb

Epilobium coloratum cinnamon willow-herb

Chamaenerion angustifolium Fireweed