Evening Primrose

Genus Oenothera
Evening Primrose Family (Onagraceae)

Evening Primrose
   Photograph by Sandra Bray

Evening Primrose
(Oenothera caespitosa)

This is a low-growing plant, but has very large showy flowers. They bloom in the evening, then fade and wither soon after sunrise the next morning.

The flowers usually have no stem. What seems to be a stem is actually an elongated floral tube. Only insects with very long tongues can reach the nectar at the bottom.

Government Creek Cove
Wayne County, Utah


by Sandra Bray