Chamaenerion genus --- evening primrose family

fireweed (Chamaenerion angustifolium) -- in July -- Yosemite National Park, CA             red and pink    

fireweed (Chamaenerion angustifolium)  -- in August -- Pingree Park, Roosevelt National Forest, CO         red and pink     

fireweed (Chamaenerion angustifolium) -- in August -- Yosemite National Park, CA    red and pink   

fireweed (Chamaenerion angustifolium) -- in September -- Marshall Pass Road, Saguache County, CO