Nothing else grew in the area but that one fern species.
At least 122 species of fern are found in this zone.
His Flora contained 1,030 species of flowering plant and fern.
About 25 species of fern also inhabit the area, two of which are not found elsewhere.
Athyrium medium is a species of fern in the Athyriaceae family.
Aspidotis densa is a species of fern known by the common name Indian's dream.
No one knew the mechanism of how this fern species survive a toxic environment like this.
Cystopteris montana is a species of fern known by the common name mountain bladderfern.
It is not certain how many species of tree fern there are but it is likely to be around a thousand.
Almost a third of leptosporangiate fern species are epiphytes.