oak fern

Noun

 * 1) A fern of genus  (syn. ) which grows on trees, especially.
 * 2) , a fern formerly thought to have medicinal properties when found growing on an oak.
 * , II.12:
 * Why say we, thatto know the vertue of Reubarb, qualitie of Oak ferne, and operation of Polipodie, is only peculiar unto man?

Translations

 * Icelandic:
 * Welsh: rhedyn tridarn


 * Welsh: rhedyn cyffredin, rhedyn y derw