Lupin (or lupine) flowers bloom along the Pacific Crest Trail on the east flank of Naches Peak, in Mount Rainier National Park, Washington, USA. Lupinus is a genus in the pea family (also called the legume, bean, or pulse family: Fabaceae or Leguminosae). Hike the 5-mile Naches Peak Loop Trail starting near Chinook Pass on Highway 410 between Enumclaw and Yakima.
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