ScienceDaily (June 17, 2011) — It's summer wildflower season in the Rocky Mountains, a time when high-peaks meadows are dotted with riotous color. But for how long? Once, wildflower season in montane meadow ecosystems extended throughout the summer months. But now scientists have found a fall-off in wildflowers at mid-season.
http://www.sciencedaily.com/releases/2011/06/110616193751.htm