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on open gravelly silts of alluvial terrace abutting tuffaceous volcanic hillside. The long, 'S' (sigmoid) curved corolla tube is distinctive to this Sierra Madrean species
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on open gravelly silts of alluvial terrace abutting tuffaceous volcanic hillside. The long, 'S' (sigmoid) curved corolla tube is distinctive to this Sierra Madrean species
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on open gravelly silts of alluvial terrace abutting tuffaceous volcanic hillside. The long, 'S' (sigmoid) curved corolla tube is distinctive to this Sierra Madrean species
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on open gravelly silts of alluvial terrace abutting tuffaceous volcanic hillside. An 'S' (sigmoid) curved corolla tube is distinctive to this Sierra Madrean species
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on open gravelly silts of alluvial terrace abutting tuffaceous volcanic hillside. An 'S' (sigmoid) curved corolla tube is distinctive to this Sierra Madrean species
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on open gravelly silts of alluvial terrace abutting tuffaceous volcanic hillside. An 'S' (sigmoid) curved corolla tube is distinctive to this Sierra Madrean species
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on open gravelly silts of alluvial terrace abutting tuffaceous volcanic hillside. An 'S' (sigmoid) curved corolla tube is distinctive to this Sierra Madrean species
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