Birdcage Evening Primrose

Flowers and some drooping buds.

Here's a closeup of the pretty, papery flowers.

Oenothera deltoides Onagraceae (Evening Primrose family) Common names: Birdcage Evening Primrose Location: Glen Canyon near Bullfrog. Open desert, sandy, with slickrock. April 12, 2008. Elevation: approx 4000 feet NAD83 UTM: 12S 530250 mE 4164000 mN Dominance: Common in the area. Comments:   Source: Spellenberg, Richard. (1979, 1994) National Audubon Society Field Guide to North American Wildflowers, Western Region. Alfred A. Knopf, New York. ISBN 0-394-50431-3. Plate number 61; Description page 631.