Thismia - Northeastern US Plants

Mike Hough has put together a very nice collection of photos and information on regional flora "for 700+ native species from the upper Midwest and Northeast. The plants cover a broad range of habitats including savanna, prairie, pine barrens, dunes, eastern deciduous forest and a variety of wetland habitats."  Searchable by flower color.  The accompanying blog highlights finds from his forays with great photos.  Excellent for central NY counties.