Contact: Paul Krushelnycky
United States Geological Survey
Caption: This is a Haleakala silversword (Argyroxyphium sandwicense subsp. macrocephalum) in bloom, with Haleakala Volcano crater in background. It is the west rim of Haleakala; crater, Maui, Hawaii, 2007.
Credit: Paul Krushelnycky, University of Hawaii at Manoa
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Related news release: Global warming may have severe consequences for rare Haleakalā silverswords