Polemonium genus --- phlox family
Rocky Mountain sky pilot (Polemonium confertum) -- in July -- Hoosier Ridge, Summit County, CO blue & purple
Rocky Mountain sky pilot (Polemonium confertum) -- Hoosier Pass, Park/Summit Counties, CO
towering Jacob's ladder (Polemonium foliosissimum) -- in June -- Kebler Pass Road, Gunnison County, CO blue & purple
towering Jacob's ladder (Polemonium foliosissimum) -- in July -- Elko County, NV white & cream
western polemonium (Polemonium occidentale) -- in July -- Elko County, NV blue & purple
Jacob's ladder (Polemonium pulcherrimum var. delicatum) -- in July -- Old Fall River Road, RMNP, CO blue & purple
Jacob's ladder (Polemonium pulcherrimum var. delicatum) -- in June -- Ohio Pass Road, Gunnison County, CO
Greek valerian (Polemonium reptans) -- in April -- Natchez Trace Parkway, southern Tennessee blue & purple
sticky polemonium (Polemonium viscosum) -- in June -- Old Fall River Road, Rocky Mountain National Park, CO blue & purple
sticky polemonium (Polemonium viscosum) -- in July -- Mount Evans, Clear Creek County, CO