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Prickly Pear Cactus = Opuntia polyacantha (Yellow Cactus)
Opuntia fragilis (Nuttall) Haworth
Opuntia polyacantha Haworth
Opuntia polyacantha Haworth
Carbon : our history, our heritage
PDF
Plants and the Blackfoot
PDF
Archaeological investigations : Writing-on-Stone N.W.M.P. Post
PDF
Carbon : our history, our heritage
PDF
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