
hard ferns
Blechnum
Blechnum (hard fern) is a genus of between 150–220 species of ferns with a cosmopolitan distribution, in the family Blechnaceae in the eupolypods II clade of the order Polypodiales. By far the greatest species diversity is in tropical regions of the Southern Hemisphere, with only a few species reaching cool temperate latitudes in the Southern Hemisphere (notably B. penna-marina, south to Cape Horn, Chile, the southernmost fern in the world) and Northern Hemisphere (notably B. spicant,...
60 branches of this genus, most-observed first

Oriental Blechnum
speciesBlechnum orientale

little hard fern
speciesBlechnum penna-marina

Kiokio
speciesBlechnum novae-zelandiae
Fishbone water-fern
speciesBlechnum nudum

Hard Water-fern
speciesBlechnum wattsii
Rereti
speciesBlechnum chambersii

Thread Fern
speciesBlechnum filiforme

common rasp fern
speciesBlechnum parrisiae

Small kiokio
speciesBlechnum procerum

Hammock fern
speciesBlechnum occidentale

Chilean hard fern
speciesBlechnum chilense

Swamp Kiokio
speciesBlechnum minus

Blechnum hastatum
speciesBlechnum hastatum

Cape Hard Fern
speciesBlechnum capense

palm fern
speciesBlechnum appendiculatum

Waterfall fern
speciesBlechnum colensoi

Mountain Kiokio
speciesBlechnum montanum
Strap Water-fern
speciesBlechnum patersonii

Glossy Hard Fern
speciesBlechnum punctulatum
Blechnum membranaceum
speciesBlechnum membranaceum

Pointed Hard Fern
speciesBlechnum attenuatum

Greater Hard-fern
speciesBlechnum cordatum

Southern Hard Fern
speciesBlechnum australe

Shore Hard Fern
speciesBlechnum banksii

Blechnum mochaenum
speciesBlechnum mochaenum

Blechnum polypodioides
speciesBlechnum polypodioides

Blechnum durum
speciesBlechnum durum

Blechnum finlaysonianum
speciesBlechnum finlaysonianum

Green Bay Kiokio
speciesBlechnum triangularifolium

Blechnum microphyllum
speciesBlechnum microphyllum

Fragile Midsorus Fern
speciesBlechnum fragile

Brazilian tree-fern
speciesBlechnum brasiliense

Blechnum ambiguum
speciesBlechnum ambiguum
Mokimoki
speciesBlechnum molle

Blechnum arcuatum
speciesBlechnum arcuatum

Blechnum vestitum
speciesBlechnum vestitum

Blechnum camfieldii
speciesBlechnum camfieldii

Blechnum loxense
speciesBlechnum loxense

Blechnum zeelandicum
speciesBlechnum zeelandicum

Rasp Fern
speciesBlechnum medium

Blechnum eburneum
speciesBlechnum eburneum

Blechnum × aggregatum
hybridBlechnum × aggregatum

Blechnum ryanii
speciesBlechnum ryanii

Blechnum gracile
speciesBlechnum gracile

Blechnum raddianum
speciesBlechnum raddianum
Blechnum norfolkianum
speciesBlechnum norfolkianum

Parablechnum marginatum
speciesParablechnum marginatum

Blechnum divergens
speciesBlechnum divergens

Blechnum contiguum
speciesBlechnum contiguum

Blechnum buchtienii
speciesBlechnum buchtienii

Blechnum asplenioides
speciesBlechnum asplenioides
Blechnum schiedeanum
speciesBlechnum schiedeanum

Blechnum gregsonii
speciesBlechnum gregsonii

Blechnum tuerckheimii
speciesBlechnum tuerckheimii

Blechnum laevigatum
speciesBlechnum laevigatum

Rockbank Midsorus Fern
speciesBlechnum lineatum

Blechnum ensiforme
speciesBlechnum ensiforme

Blechnum opacum
speciesBlechnum opacum

Blechnum proliferum
speciesBlechnum proliferum

Blechnum corralense
speciesBlechnum corralense
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Blechnum in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 48433.