Maidenhair Fern

{| class="wikitable" |- ! colspan=1 | Phylogeny of Adiantum |- | style="vertical-align:top| }} |2= }} }} }} }} |}

*Adiantum abscissum *Adiantum adiantoides *Adiantum aethiopicum – common maidenhair, true maidenhair *Adiantum alarconianum *Adiantum aleuticum – Aleutian maidenhair, western five-fingered Fern *Adiantum amazonicum *Adiantum amblyopteridium *Adiantum amelianum *Adiantum anceps – double edge maidenhair *Adiantum aneitense *Adiantum angustatum *Adiantum annamense *Adiantum atroviride *Adiantum bellum – Bermuda maidenhair *Adiantum bessoniae *Adiantum blumenavense *Adiantum boliviense *Adiantum bonatianum *Adiantum bonii *Adiantum brasiliense – Brazilian maidenhair *Adiantum breviserratum *Adiantum calcareum *Adiantum capillus-junonis *Adiantum capillus-veneris – black maidenhair, southern maidenhair, Venus' hair *Adiantum caudatum – walking maidenhair, tailed maidenhair, trailing maidenhair *Adiantum celebicum *Adiantum chilense *Adiantum christii *Adiantum comoroense *Adiantum concinnum – polished maidenhair, brittle maidenhair *Adiantum coreanum – Korean maidenhair fern *Adiantum crespianum *Adiantum cultratum *Adiantum cuneatiforme *Adiantum cunninghamii *Adiantum cupreum *Adiantum curvatum *Adiantum davidii *Adiantum diaphanum – filmy maidenhair, small maidenhair. *Adiantum dioganum *Adiantum diphyllum *Adiantum discretodenticulatum *Adiantum dissimulatum *Adiantum edgeworthii *Adiantum elegantulum *Adiantum erylliae *Adiantum erythrochlamys *Adiantum excisum – Chilean maidenhair *Adiantum fengianum *Adiantum fimbriatum *Adiantum flabellulatum *Adiantum formosum – giant maidenhair, Australian maidenhair *Adiantum fossarum *Adiantum fragile – fragile maidenhair *Adiantum fragrans *Adiantum fructosum *Adiantum fulvum *Adiantum gertrudis *Adiantum gibbosum *Adiantum gingkoides *Adiantum glabrum *Adiantum glaureosum *Adiantum glaucescens *Adiantum glaucinum *Adiantum glaziovii *Adiantum gomphophyllum *Adiantum gracile *Adiantum gravesii *Adiantum grossum *Adiantum hispidulum – rough maidenhair, rosy maidenhair *Adiantum hollandiae *Adiantum hornei *Adiantum hosei *Adiantum imbricatum *Adiantum incertum *Adiantum incisum *Adiantum intermedium *Adiantum jordanii – California maidenhair *Adiantum juxtapositum *Adiantum kendalii *Adiantum kingii *Adiantum klossii *Adiantum lamrianum *Adiantum latifolium – broadleaf maidenhair *Adiantum lenvingei *†Adiantum lianxianense *Adiantum lindenii *Adiantum lonrentzii *Adiantum lucidum *Adiantum macrocladum *Adiantum macrophyllum – largeleaf maidenhair *Adiantum madagascariense *Adiantum malaliense *Adiantum malesianum *Adiantum mariesii *Adiantum mariposatum *Adiantum mcvaughii *Adiantum melanoleucum – fragrant maidenhair *Adiantum mendoncae *Adiantum menglianense *Adiantum mettenii *Adiantum mindanaense *Adiantum monochlamys *Adiantum monosorum *Adiantum multisorum *Adiantum myriosorum *Adiantum neoguineense *Adiantum novae-caledoniae *Adiantum nudum *Adiantum oaxacanum *Adiantum obliquum – oblique maidenhair *Adiantum ogasawarense *Adiantum opacum *Adiantum ornithopodum *Adiantum ovalescens *Adiantum palaoense *Adiantum papillosum *Adiantum paraense *Adiantum patens *Adiantum pearcei *Adiantum pedatum – northern maidenhair, five-fingered fern *Adiantum pentadactylon *Adiantum peruvianum – silver-dollar fern, Peruvian maidenhair *Adiantum petiolatum – stalked maidenhair *Adiantum philippense *Adiantum phyllitidis *Adiantum platyphyllum *Adiantum poiretti *Adiantum polyphyllum – giant maidenhair *Adiantum pseudotinctum *Adiantum pulchellum *Adiantum pulcherrimum *Adiantum pulverulentum – glossy maidenhair *Adiantum pumilum *Adiantum pyramidale – pyramid maidenhair *Adiantum raddianum – delta maidenhair *Adiantum rectangulare *Adiantum reniforme – lotus-leaved maidenhair fern *Adiantum rhizophorum *Adiantum robinsonii *Adiantum roborowskii *Adiantum rondoni *Adiantum rufopetalum *Adiantum scabrum *Adiantum schmalzii *Adiantum schmidtchenii *Adiantum schweinfurthii *Adiantum seemannii – Seeman's maidenhair *Adiantum semiorbiculatum *Adiantum senae *Adiantum serratifolium *Adiantum shastense *Adiantum siamense *Adiantum silvaticum *Adiantum sinicum *Adiantum soboliferum *Adiantum sordidum *Adiantum stenochlamys *Adiantum stolzii *Adiantum subcordatum – big maidenhair *Adiantum subpedatum *Adiantum tenerum – fan maidenhair, brittle maidenhair *Adiantum tenuissimum *Adiantum tetragonum *Adiantum tetraphyllum – fourleaf maidenhair *Adiantum thalictroides *Adiantum trapeziforme – diamond maidenhair *Adiantum tricholepis – fuzzy maidenhair *Adiantum trilobum *Adiantum tripteris *Adiantum venustum – evergreen maidenhair, Himalayan maidenhair. *Adiantum villosissimum *Adiantum villosum – woolly maidenhair *Adiantum viridescens *Adiantum viridimontanum – Green Mountain maidenhair *Adiantum vivesii – Puerto Rico maidenhair *Adiantum vogelii *Adiantum wattii *Adiantum wilsonii – Wilson's maidenhair *Adiantum zollingeri

Many species are grown in the horticultural trade. There are a number of tropical species, including A. raddianum and A. peruvianum. Both A. pedatum and A. aleuticum are hardy to zone 3, and are by far the most cold-hardy members of the genus. A. venustum is also cold-hardy to zone 5. A. capillus-veneris is hardy to zone 7. Hybrids, such as Adiantum × mairisii, are also popular.