Epithets
| petraea | growing with rocks |
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| petraeus | growing with rocks |
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| petrophila | rock-loving |
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| petrophilum | rock-loving |
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| petrosum | growing in very rocky conditions |
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| petrosus | growing in very rocky conditions |
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| phaea | dusky, gray |
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| phaeum | dusky, gray |
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| phalaenopses | moth-like |
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| phalaenopsis | moth-like |
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| phyllo- | prefix meaning "leaf" or "leafy" |
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| picta- | prefixes meaning "painted", "embroidered" |
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| picto- | prefixes meaning "painted", "embroidered" |
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| pictu- | prefixes meaning "painted", "embroidered" |
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| pileata | capped |
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| pileatus | capped |
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| pilo- | prefix meaning "hairy" |
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| pinnatisectus | pinnately divided |
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| pinnatus | pinnately divided |
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| plani- | flat |
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| plano- | flat |
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| plantaginea | like a plantain |
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| platy- | prefix meaning "wide", "broad" |
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| plena | double |
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| pleni- | prefix meaning "filled, full, abundant" |