In Jutland a rowan that is found growing out of the top of another tree is esteemed “exceedingly effective against witchcraft: since it does not grow on the ground witches have no power over it; if it is to have its full effect it must be cut on Ascension Day.” Hence it is placed over doors to prevent the ingress of witches. In Sweden and Norway, also, magical properties are ascribed to a “flying-rowan” (flögrönn), that is to a rowan which is found growing not in the ordinary fashion on the ground but on another tree, or on a roof, or in a cleft of the rock, where it has sprouted from seed
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