Platanthera dilatata

Quick Characteristics:

Platanthera dilatata (Pursh) Lindl. ex L.C.Beck, syn. Piperia dilatata, is native to the western United States. It is found growing in swamps, marshes and wet meadows. The flowers are white and fragrant. This species frequently hybridizes with other species blooming at the same time. Photo 1 by Dave Menke, photographer of the US Fish and Wildlife Service. Photo 2 by Walter Siegmund, from the Wikimedia Commons (see the source here).