Showy Milkweed (Asclepias speciosa), Dogbane Family (Apocynaceae). Native and common in sandy, loamy, or gravelly soil along roadsides, in ditches, in fields and along streams from plains to montane on the eastern and western slopes. Bloooms from June through August....
Colorado Alpine Butterfly (Erebia callias), Nymphalidae, feeding on a Arrow-leaf Senecio, (Senecio triangularis), Aster Family (Asteraceae) in a wetland of upper Placer Gulch, San Juan County, elevation 12,290′. Photo by Bob...
