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on open, grassy, undulating plain in basin along & below eastern Madrean escarpment, among diverse grasses and forbs on coarse volcanic alluvium.
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White flowering population in partly shaded pine understory on volcanic tuff substrate.
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opening in pine flats understory with volcanic tuff substrate
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opening in pine flats understory with volcanic tuff substrate
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on burned over pine flat south of campground
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on old graded roadside pullout of volcanic tuffaceous fill above Rio Papigochic tributary with Desmodium batocaulon, Dalea leporina, Acmispon plebieus & Macroptilium.
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Plants in grasses on reddish volcanic rhyolite of on grassy, moderate hillside slope with Dahlia scherffii, Salvia emaciata, Verbena pinetorum, Milla biflora. Note short beak & 3 near equal petals. Original ID as C. coelestis, which is now considered a synonym under C. tuberosa
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on coarse volcanic gravels and alluvial sands below rhyolitic tuff cliffs forming narrow canyon bottom drained by small perennial creek. Original ID as C. coelestis, which is now considered a synonym under C. tuberosa
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in grasses on moist alluvial volcanic soils between a small perennial creek and a large bare outcrop of pale weathered rhyolitc tuff
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along above silty saline clay shoreline of brackish Oso Creek at edge of brushy hummock in a preserved natural area of native vegetation with Borrichia frutescens
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along above silty saline clay shoreline of brackish Oso Creek at edge of brushy hummock in a preserved natural area of native vegetation with Borrichia frutescens
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along drainage course between low limestone hills in open flat of disturbed calcareous soil and gravel outwash as road bisects small arroyo; with Ibervillea, Lantana, Cyphomeris, Rivina and Hunnemannia
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along drainage course between low limestone hills in open flat of disturbed calcareous soil and gravel outwash as road bisects small arroyo; with Ibervillea, Lantana, Cyphomeris, Rivina and Hunnemannia
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along drainage course between low limestone hills in open flat of disturbed calcareous soil and gravel outwash as road bisects small arroyo; with Ibervillea, Lantana, Cyphomeris, Rivina and Hunnemannia
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along drainage course between low limestone hills in open flat of disturbed calcareous soil and gravel outwash as road bisects small arroyo; with Ibervillea, Lantana, Cyphomeris, Rivina and Hunnemannia
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along drainage course between low limestone hills in open flat of disturbed calcareous soil and gravel outwash as road bisects small arroyo; with Ibervillea, Lantana, Cyphomeris, Rivina and Hunnemannia
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along drainage course between low limestone hills in open flat of disturbed calcareous soil and gravel outwash as road bisects small arroyo; with Ibervillea, Lantana, Cyphomeris, Rivina and Hunnemannia
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along drainage course between low limestone hills in open flat of disturbed calcareous soil and gravel outwash as road bisects small arroyo; with Ibervillea, Lantana, Cyphomeris, Rivina and Hunnemannia
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roadside drainage in grasses on volcanic tuff of grassy hillside. Species is difficult to distinguish from C. tuberosa and maybe conspecific
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