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plants on partly shaded pine understory on low hillside of volcanic tuff substrate. Leaflet length 3 times width, possibly intermediate with C. angustifolia
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plant roadside, in mesic swale of grasses at base of small knoll of volcanic tuff along margin of grassy basin.
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pine understory in rocky, volcanic tuffaceous rhyolite soil on gently undulating plain forming Madrean plateau
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plants on partly shaded pine understory on low hillside of volcanic tuff substrate. Leaflet length 3 times width, possibly intermediate with C. angustifolia
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plants on partly shaded pine understory on low hillside of volcanic tuff substrate. Lanceolate leaflet length 3 times width, possibly intermediate with C. angustifolia
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plant roadside, in mesic swale of grasses at base of small knoll of volcanic tuff along margin of grassy basin.
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open roadside on coarse granitic roadbed mixed over substrate of volcanic tuff and tuffaceous rhyolite at crest of the eastern escarpment onto Madrean plateau.
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pine understory in rocky, volcanic tuffaceous rhyolite soil on gently undulating plain forming Madrean plateau
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shallow soil pocket on open volcanic tuff slope along trail above river
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clearing in pine flats of the Madrean highlands on shallow volcanic soil over rhyolitic tuff substrate
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