The dominant grass along the beaches and sand dunes of Lake Michigan, Marram Grass, requires very sandy soils in full sun. It’s long, narrow inflorescences are somewhat showy and it is a key species for dune stabilization. Some bird species use it for nesting and cover.
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Photo: By Halley (originally posted to Flickr as Beach Grass) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons