Ptilium crista-castrensis | |
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P. crista-castrensis in Finland | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Division: | Bryophyta |
Class: | Bryopsida |
Subclass: | Bryidae |
Order: | Hypnales |
Family: | Pylaisiaceae |
Genus: | Ptilium |
Species: | P. crista-castrensis
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Binomial name | |
Ptilium crista-castrensis (Hedw.) De Not.
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Ptilium crista-castrensis, the knights plume moss[1] or ostrich-plume feathermoss,[2] is a moss species within the family Pylaisiaceae,[3][4] in the class Bryopsida, subclass Bryidae and order Hypnales.