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       CO-M

star gentian (Swertia perennis) -- in August -- Snowy Range, Medicine Bow National Forest, WY   blue & purple     WY-SR