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annual on coarse limestone sands and gravels at roadside crossing gently sloping out-wash plain.
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annual on coarse limestone sands and gravels at roadside crossing gently sloping out-wash plain.
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on coarse limestone sands and gravels at roadside crossing gently sloping out-wash plain
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flat mat on volcanic soil and gravel of flat alluvial plain.
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flat mat on volcanic soil and gravel of flat alluvial plain.
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on mixed volcanic gravels of shallow arroyo drainage across creosote flats.
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clayish silt/sands of an arroyo bottom
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on coarse volcanic sands and mixed gravels of wide braided wash draining desert flats
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on low calcareous/gypseous clays of hillside above wash
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on gypseous clays topped by silts and gravels with Pertyle vaseyi, Psathyrotopsis scaposa,
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on gypseous clays topped by silts and gravels with Pertyle vaseyi, Psathyrotopsis scaposa,
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on gypseous clays topped by silts and gravels with Pertyle vaseyi, Psathyrotopsis scaposa,
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