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gravelly volcanic soil on low hillside of rhyolitic tuff.
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gravelly volcanic soil on low hillside of rhyolitic tuff.
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gravelly volcanic soil on low hillside of rhyolitic tuff.
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gravelly volcanic soil on low hillside of rhyolitic tuff.
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riparian corridor of small tributary of Rio Verde in narrow canyon cut in volcanic rhyolitic tuff. Plants in volcanic silts, coarse soils, mixed gravels and scattered large boulders of canyon bottomland.
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May 16, 2010 Santa Catalina Mountains, General Hitchcock Campground, Arizona
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May 16, 2010 Santa Catalina Mountains, General Hitchcock Campground, Arizona
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May 16, 2010 Santa Catalina Mountains, General Hitchcock Campground, Arizona
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May 16, 2010 Santa Catalina Mountains, General Hitchcock Campground, Arizona
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May 16, 2010 Santa Catalina Mountains, General Hitchcock Campground, Arizona
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