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2009 California Academy of Sciences
CalPhotos
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2009 California Academy of Sciences
CalPhotos
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2017 California Academy of Sciences
CalPhotos
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1999 California Academy of Sciences
CalPhotos
cottontop cactus
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on low open hills of eroded exposures of gypseous, shaley Cretaceous limestone with Ariocarpus fissuratus, Stenandrium barbatum, Amsonia longiflora, Thymophylla acerosa, Xyloriza wrightii, Nama havardii, Polygala macrdenia, Nerisyrenia camporum, Anulocaulis leiosolenus.
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on low open hills of eroded exposures of gypseous, shaley Cretaceous limestone with Ariocarpus fissuratus, Stenandrium barbatum, Amsonia longiflora, Thymophylla acerosa, Xyloriza wrightii, Nama havardii, Polygala macrdenia, Nerisyrenia camporum, Anulocaulis leiosolenus,
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immature specimen
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plant salvaged from road building project in 1991
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plants salvaged from road building project in 1991
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plant salvaged from road building project in 1991
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plant salvaged from road building project in 1991
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line.
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line. Mature supination.
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line. Partially crested specimen.
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line. Crown/meristem view.
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line.
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line.
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line.
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line.
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hillside slope with calcareous gravels on over white blocky limestone outcrops. An exceptionally rich and diverse flora site less than 100 yards east of Coahuila state line.
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