Swertia genus --- Gentian family
star gentian (Swertia perennis) -- in August -- Kilpecker Road, Red Feather Lakes Area, Larimer County, CO
star gentian (Swertia perennis) -- in August -- Cherokee Park State Wildlife Area, CO blue & purple
star gentian (Swertia perennis) -- in August -- Snowy Range, Medicine Bow National Forest, WY blue & purple
star gentian (Swertia perennis) -- in August -- Shrine Pass Road, Eagle County, CO