Eureka Valley Dune Evening Primrose.  A federally endangered plant, Oenothera californica eurekensis is a perennial herb that produces white flowers from April to June. These flowers turn red as they age. The Eureka Dunes evening-primrose is found only in the southern portion of Eureka Valley Sand Dunes system in Indigo County, California. Eureka Dunes, Death Valley National Park, California, USA. Image #25343
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