Das Judasohr (Auricularia auricula-Judaica) is a parasite on living trees or eats already dead wood. Wood ears grow in many tree species, as e.g.. Birch, Elms, Walnut, Mango-, I get- and elderberry trees – the latter circumstance was also crucial for the name „Judasohr“, because Judas hanged himself on such a tree, according to legend, Often they are also on conifers to find as spruces. You can find a Judas ear almost throughout the year at suitable locations, because they are resistant to frost, they may also be in the dead of winter under the Snow be excavated.