oak fern การใช้

The rare Limestone Oak Fern " Gymnocarpium robertianum " and Rigid Buckler-Fern " Dryopteris submontana " have also been recorded here.
These changes could kill rare plant species such as alpine woodsia fern, tufted saxifrage, hart's tongue fern and oak fern, the report said.
In the lowlands, several ferns such as the oak fern are found . ), and assorted plants ( esp . wild rhubarb " Polygonum alaskanum " ) were eaten fresh, preserved for later consumption, or used for medicinal purposes.