The Silvery Lupine is in the Pea-Family and grows abundantly in Estes Park and Rocky Mountain National Park. It is the one flower that grew in my yard this summer with very limited water.
Silvery Lupine grows to about 18″ and is blue or bi-colored (pink or white) and has 3/4″ pea-flowers whorled in conical clusters. Its stems are leafy and branched and its leaves are are palmately divided. It blooms from April through July, although mine was still blooming in late August.
The first photograph is a macro of the delicate flowers taken at Lily Lake. The second photograph is of the whole plant so you can see the leaves taken on Black Canyon Trail.
Next summer look for leaves with 5-9 finger-like leaflets and a raceme of leguminous flowers. It is truly a beautiful wildflower!