You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Leelanau Remove constraint Place: Leelanau Place Sleeping Bear Dunes National Lakeshore; near Glen Lake beach Remove constraint Place: Sleeping Bear Dunes National Lakeshore; near Glen Lake beach Topic Equisetales Remove constraint Topic: Equisetales Topic Equisetum Remove constraint Topic: Equisetum Topic Polypodiopsida Remove constraint Topic: Polypodiopsida