''Athyrium montanum'' is the name of a fern species, which may refer to:
*''Athyrium montanum''
( Lam.) Röhl. ex Spreng., combined in 1804, now known as ''
Cystopteris montana
''Cystopteris montana'', previously classified as '' Athyrium montanum'', is a species of fern known by the common name mountain bladderfern. It occurs throughout the high latitudes of the Northern Hemisphere, in Eurasia, Greenland, and Alaska, a ...
''
*''Athyrium montanum''
(Willd.
Carl Ludwig Willdenow (22 August 1765 – 10 July 1812) was a German botanist, pharmacist, and plant taxonomist. He is considered one of the founders of phytogeography, the study of the geographic distribution of plants. Willdenow was also ...
) Shafer
Schaefer is an alternative spelling and cognate for the German word ''schäfer'', meaning 'shepherd', which itself descends from the Old High German '' scāphare''. Variants "Shaefer", "Schäfer" (a standardized spelling in many German-speaking ...
, published 1901, an
illegitimate
Legitimacy, in traditional Western common law, is the status of a child born to parents who are legally married to each other, and of a child conceived before the parents obtain a legal divorce.
Conversely, ''illegitimacy'', also known as ''b ...
later homonym
In biology, a homonym is a name for a taxon that is identical in spelling to another such name, that belongs to a different taxon.
The rule in the International Code of Zoological Nomenclature is that the first such name to be published is the s ...
, now known as ''
Asplenium montanum
''Asplenium montanum'', commonly known as the mountain spleenwort, is a small fern endemic to the eastern United States. It is found primarily in the Appalachian Mountains from Vermont to Alabama, with a few isolated populations in the Ozarks a ...
''
{{SIA, plants
montanum