The northern buckler fern (Dryopteris expansa) is a large fern that favours shady, wet and lush forests. The plant is poisonous. Its rootstock has traditionally been used to remove tapeworms.
Large fern
The northern buckler fern (Dryopteris expansa) is a large fern that favours shady, wet and lush forests. The plant is poisonous. Its rootstock has traditionally been used to remove tapeworms.