Matteuccia struthiopteris vs Pteretis struthiopteris

Matteuccia struthiopteris and Pteretis struthiopteris both are nouns.

Word	Noun	Adjective	Verb	Adverb
Matteuccia struthiopteris	Yes	No	No	No
Pteretis struthiopteris	Yes	No	No	No

As nouns, Matteuccia struthiopteris and Pteretis struthiopteris are synonyms defined as:

Matteuccia struthiopteris and Pteretis struthiopteris: tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes

Other synonyms of Matteuccia struthiopteris include fiddlehead, Onoclea struthiopteris, ostrich fern, shuttlecock fern.

Matteuccia struthiopteris (noun)	Pteretis struthiopteris (noun)
tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes	tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes