{{Short description|Genus of ferns}} {{Automatic taxobox |image = |image_caption = |taxon = Polytaenium |authority = J.Sm.<ref name=POWO_17209050-1/> |type_species = ''Polytaenium lanceolatum'' |type_species_authority = (Swartz) Desvaux |subdivision_ranks = Species |subdivision = See text. |synonyms = {{Genus list |Antrophyum subgen. Polytaenium|(Desv.) Bened. |Anetium|(Kunze) Splitg. |Pteridanetium|Copel. (nom. superfl.) |Acrostichum sect. Anetium|Kunze }} |synonyms_ref = <ref name=CFLW/> }}

'''''Polytaenium''''' is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae.<ref name=PPGI/> Species are native to Mexico and Southern America.<ref name=POWO_17209050-1/>

==Phylogeny== {{As of|2019|December}}, the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species:<ref name=CFLW/> {| class="wikitable" |- ! colspan=1 | Phylogeny of ''Polytaenium''<ref>{{cite journal |last1=Nitta |first1=Joel H. |last2=Schuettpelz |first2=Eric |last3=Ramírez-Barahona |first3=Santiago |last4=Iwasaki |first4=Wataru |display-authors=et al. |year=2022 |title=An Open and Continuously Updated Fern Tree of Life |journal=Frontiers in Plant Science |volume=13 |issue= |article-number= 909768| doi=10.3389/fpls.2022.909768 |pmid= 36092417|pmc= 9449725|bibcode= |doi-access=free}}</ref><ref>{{cite web|last1= |first1= |last2= |display-authors=et al. |year=2023 |title=Tree viewer: interactive visualization of FTOL |url=https://fernphy.github.io/viewer.html |version=FTOL v1.5.0 [GenBank release 256] |access-date=17 August 2023}}</ref> |- | style="vertical-align:top| {{Clade | style=font-size:90%;line-height:80% |1={{clade |1=''P. citrifolium'' <small>(L.) Schuettp.</small><ref name=POWO_77158647-1/> |2={{clade |1=''P. lineatum'' <small>J.Sm.</small> |2={{clade |1=''P. cajenense'' <small>(Desv.) Benedict</small> |2={{clade |1=''P. guayanense'' <small>(Hieron.) Alston</small> |2={{clade |1=''P. chlorosporum'' <small>(Mickel & Beitel) E.H.Crane</small> |2=''P. feei'' <small>(W.Schaffn. ex Fée) Maxon</small> }} }} }} }} }} }} |}

{{Div col|colwidth=24em}} *''P. anetioides'' <small>Benedict</small> *''P. dussianum'' <small>Benedict</small> *''P. intramarginale'' <small>(Baker ex Jenman) Alston</small> *''P. jenmanii'' <small>Benedict</small> *''P. ophioglossoides'' <small>(Lellinger) S.Linds.</small> *''P. quadriseriatum'' <small>Benedict</small> *''P. urbani'' <small>(Brause) Alain</small> {{Div col end}}

==References== {{Reflist|refs= <ref name=CFLW>{{Citation |last1=Hassler |first1=Michael |last2=Schmitt |first2=Bernd |date=November 2019 |contribution=Polytaenium |title=Checklist of Ferns and Lycophytes of the World |at=8.11 |url=https://worldplants.webarchiv.kit.edu/ferns/ |access-date=2019-12-30 |name-list-style=amp }}</ref>

<ref name=POWO_17209050-1>{{citation |title=''Polytaenium'' J.Sm. |work=Plants of the World Online |publisher=Royal Botanic Gardens, Kew|url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:17209050-1 |access-date=2019-12-30 }}</ref>

<ref name=POWO_77158647-1>{{citation |title=''Polytaenium citrifolium '' (L.) Schuettp. |work=Plants of the World Online |publisher=Royal Botanic Gardens, Kew|url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77158647-1 |access-date=2019-12-30 }}</ref>

<ref name=PPGI>{{Citation |author=PPG I |year=2016 |title=A community-derived classification for extant lycophytes and ferns |journal=Journal of Systematics and Evolution |volume=54 |issue=6 |pages=563–603 |doi=10.1111/jse.12229|s2cid=39980610 |doi-access=free }}</ref> }}

{{Plant classification}} {{Fern classification}} {{Taxonbar|from=Q6082147}} Category:Pteridaceae Category:Fern genera {{Pteridaceae-stub}}