Scientific Name: Opuntia polyacantha var. trichophora (Engelm. & Bigelow) Coult.
Caption: Opuntia trichophora
Photographer: Tony Frates
Locality: Arches National Park, Grand County, Utah
Notes: Sept 25, 2010, Approx. 4,450 ft. elev, unusual habitat for general area, rocky/quartz, south-facing slope, growing with Eriogonum microthecum var. simpsonii
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