Dryopteris carthusiana
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Country: United States
Dryopteris × triploidea
Dryopteris x triploidea is a hybrid formed by a cross between D. carthusiana and D. intermedia....
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Polystichum acrostichoides
Polystichum acrostichoides, known as Christmas fern, is native to eastern North America. It is...
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Diphasiastrum digitatum
Diphasiastrum digitatum is an endemic in eastern North America. It can be found in coniferous and...
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