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.