Which lichen is commonly called 'root ripe'?Cetraria islandica or Cladonia rangiferina

Hai
Its a lichen largely grown in ice land areas,
It absorbs tmospheric moisture and has no roots at all.
It is called as root ripe because upon drying for medicinal use it appears to have root like appearance.
it is largely used in chinese medicines as soup and many other tonic ingredients.

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