Tags: Fern.
Polystichum aleuticum the Aleutian Shield Fern is an endangered species of the Polystichum genus and currently consisting of a small vulnerable population endemic found only on Adak Island Alaska a remote island of the Aleutian Islands chain in the northern Pacific Ocean. In 1992 112 specimens existed in the wild and a recovery plan was implemented.The Aleutian Shield Fern is the only native plant of Alaska on the federal endangered species list.
