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WordNet-Online 
 
Noun penstemon rupicola has 1 sense 
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| penstemon davidsonii penstemon deustus penstemon dolius penstemon fruticosus penstemon linarioides penstemon newberryi penstemon palmeri penstemon parryi penstemon rupicola penstemon rydbergii penstemon serrulatus penstemon whippleanus penstock penstrating pent-up pent pent up 
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