| Polytrichum piliferum | |
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Scientific classification |
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| Kingdom: | Plantae |
| Division: | Bryophyta |
| Class: | Polytrichopsida |
| Order: | Polytrichales |
| Family: | Polytrichaceae |
| Genus: | Polytrichum |
| Species: |
P. piliferum
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| Binomial name | |
| Polytrichum piliferum
Hedw.
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| Synonyms[1] | |
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Synonyms
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Polytrichum piliferum, the bristly haircap, is an evergreen perennial species of moss in the family Polytrichaceae.[2] The bristly haircap moss is small-sized to medium-sized and forms loose tufts[3] with wine-reddish stems.[4] It is an acrocarpous moss that appears bluish-green to grey.[5] This moss grows in clumps on erect shoots and becomes a red-brown colour as it grows older.[6] The most distinguishing feature of P. piliferum is the long, white awn at the tips of the leaves, which also give this moss its grey colour.[5] It is the only species in its genus where the awn is completely hyaline.[6]