Gentian family (Gentianaceae)
lapland gentian (Comastoma tenellum) -- in August -- Pikes Peak Area, CO blue & purple
showy prairie gentian (Eustoma exaltatum ssp. russellianum) -- in August -- High Plains Environmental Center, CO blue & purple
tufted frasera (Frasera paniculata) -- in May -- San Juan County, Utah yellow & orange
green gentian (Frasera speciosa) -- in June -- Red Feather Lakes, Roosevelt National Forest, CO green & brown
green gentian (Frasera speciosa) -- in July -- Routt National Forest, CO
green gentian (Frasera speciosa) -- in July -- Caribou Ranch Open Space, Boulder County, CO
pleated gentian (Gentiana affinis) -- in August -- next to Forest Road 336, Roosevelt National Forest, CO blue & purple CO-M
pleated gentian (Gentiana affinis) -- in August -- Sportsman Lake Road, southern Wyoming
pleated gentian (Gentiana affinis) -- in August -- Mill Creek Link Trail, Lory State Park, CO blue & purple
arctic gentian (Gentiana algida) -- in August -- Snowy Range, Medicine Boy National Forest, WY white & cream
arctic gentian (Gentiana algida) -- in September -- Trail Ridge Road, Rocky Mountain National Park, CO white & cream
moss gentian (Gentiana fremontii) -- in July -- High Creek Fen Preserve, Park County, CO white & cream
Parry's gentian (Gentiana parryi) -- in August -- Snowy Range, Medicine Bow National Forest, WY blue & purple
Parry's gentian (Gentiana parryi) -- in August -- near Sand Creek Pass, Red Feather Lakes Area, CO
Parry's gentian (Gentiana parryi) -- in August -- Weston Pass Road, Lake County, CO
autumn dwarf gentian (Gentianella amarella ssp. acuta) -- in August -- Snowy Range, Medicine Bow NF red & pink
autumn dwarf gentian (Gentianella amarella ssp. acuta) -- in August -- Zimmerman Lake Trail, Larimer County, CO red & pink
fringed gentian (Gentianopsis barbellata) -- in August -- Twin Sisters Peak Trail, Rocky Mountain NP, CO blue & purple
Rocky Mountain fringed gentian (Gentianopsis thermalis) -- in August -- Snowy Range, Medicine Bow NF, WY blue & purple
Rocky Mountain fringed gentian (Gentianopsis thermalis) -- in August -- Mount Zirkel Wilderness, Jackson County, CO
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