[Evening-primroses, Sun Cups and Yellow Cups: The Genus Camissonia (and Chylismia and Eremothera) in the Southwestern Deserts of the United States]

Narrow-leaved evening-primrose as seen along the Mojave Valley Highway 95 at the east edge of Havasu NWR.........February 20, 2013.

Narrow-leaved evening-primrose as seen along the Mojave Valley Highway 95 at the east edge of Havasu NWR.........February 20, 2013.

Narrow-leaved evening-primrose as seen in Grapevine Canyon about a mile upstream from Telephone Cove in Lake Mead National Recreation Area..........February 27, 2013.

Narrow-leaved evening-primrose as seen along the access road north of Katherine Landing in Lake Mead NRA.........February 27, 2013.