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Beaked YuccaYucca rostrata - with a bloom spike.River Road, Big Bend National Park, Texas, April 18, 20142014-04-18#9005Larry L. Jackson
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Big Bend Dog ChollaGrusonia densispinaRiver Road, Big Bend National Park, Texas, April 18, 20142014-04-18#9008Larry L. Jackson
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Scalloped HillsideRiver Road, Big Bend National Park, Texas, April 18, 20142014-04-18#9012Larry L. Jackson
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Calcite Veins in ClayThe harder Calcite erodes more slowly than the clay, leaving this pattern.River Road, Big Bend National Park, Texas, April 18, 20142014-04-18#9020Larry L. Jackson
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Pink Prickly PoppyArgemone chisosensisRiver Road, Big Bend National Park, Texas, April 18, 20142014-04-18#9024Larry L. Jackson