This mushroom that looks like noodles or pom-pom are known to a variety of name like Lion's Mane Mushroom, Bearded Tooth Mushroom, Hedgehog Mushroom, Bearded Hedgehog Mushroom, or Bearded Tooth Fungus. It is an edible mushroom in the tooth fungus group. In the wild, these mushrooms are common during late summer and fall on dead hardwoods, particularly American Beech. (Link)