Epithets
| pulverulentus | powdery |
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| pulvinaris | cushion like |
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| pulvinata | cushion like |
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| pulvinatus | cushion like |
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| pumila | dwarf |
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| pumilio | dwarf |
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| punctata | spotted |
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| punctatum | spotted |
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| pungens | spiny, pungent |
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| pusilla | very small |
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| pusillus | very small |
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| pycna- | prefix meaning "dense" |
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| pycno- | prefix meaning "dense" |
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| pygmaea | dwarf |
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| pygmaeus | dwarf |