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U.S Fish & Wildlife Service. 1998. Final Recovery Plan for the Endangered
Western Lily (Lilium occidentale). Portland, OR. 82 pp.
United States Fish and Wildlife Service. 1996. Guidelines for Conducting and
Reporting Botanical Inventories for Federally Listed, Proposed and Candidate
Plants. Sacramento, CA.
Wear, K. Draft Crescent City Marsh Wildlife Area Management Plan. California
Department of Fish & Game and the Humboldt State University Foundation.
May 2005 version.
Wear, K. unpublished data, from 2005 field season.