Smithsonian National Museum of Natural History  
Lewis and Clark as Naturalists
<EM>Opuntia polyacantha </EM>Haw. - collected by E. Palmer 297, Blackfoot, Idaho, 8 July 1893

collected by E. Palmer 297, Blackfoot, Idaho, 8 July 1893
(from the United States National Herbarium US-288679)
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