orchid family (Orchidaceae)
fairy slipper (Calypso bulbosa) -- in May -- Pingree Park, Roosevelt National Forest, CO red & pink
fairy slipper (Calypso bulbosa) -- in April -- Olympic National Park, WA red & pink
longbract frog orchid (Coeloglossum viride) -- in July -- Old Fall River Road, RMNP, CO green & brown
spotted coralroot (Corallorhiza maculata) -- in June -- Well Gulch Nature Trail, Lory State Park, CO white & cream
spotted coralroot (Corallorhiza maculata) -- in July -- Wild Basin, Rocky Mountain National Park, CO
hooded coralroot (Corallorhiza striata) -- in July -- Sportsman Lake Road, WY green & brown
yellow coralroot (Corallorhiza trifida) -- in June -- Willow Creek, Pony, southern Montana white & cream
yellow coralroot (Corallorhiza trifida) -- in June -- Rampart Range Road, Pike National Forest, CO white & cream
spring coralroot (Corallorhiza wisteriana) -- in May -- Mill Creek Link Trail, Lory State Park, CO white & cream
clustered lady's slipper (Cypripedium fasciculatum) -- in July -- Rocky Mountain National Park, CO green & brown
mountain lady's slipper (Cypripedium montanum) -- in June -- Glacier National Park, MT white & cream
yellow lady's slipper (Cypripedium parviflorum) -- in June -- Stove Prairie, Roosevelt NF, Larimer County Foothills yellow & orange
giant helleborine (Epipactis gigantea) -- in June -- Dinosaur National Monument, Utah green & brown
showy orchid (Galearis spectabilis) -- in April -- Cherokee National Forest, southern Tennessee white & cream
western rattlesnake plantain (Goodyera oblongifolia) -- in August -- Cub Lake Trail, Rocky Mountain NP, CO white & cream
broadlipped twayblade (Neottia convallarioides) -- in July -- Wild Basin, Rocky Mountain National Park green & brown
heart-leaved twayblade (Neottia cordata) -- in July -- Wild Basin, Rocky Mountain National Park, CO green & brown
white bog orchid (Piperia dilatata var. dilatata) -- in June -- Glacier National Park, MT
white bog orchid (Piperia dilatata var. dilatata) -- in July -- Routt National Forest, CO
white bog orchid (Piperia dilatata var. dilatata) -- in August -- Deadman Road, Red Feather Lakes Area, CO
white bog orchid (Piperia dilatata var. dilatata) -- in September -- Marshall Pass Road, Saguache County, CO
Sierra bog orchid (Piperia dilatata var. leucostachys) -- in July -- Lassen Volcanic National Park, CA white & cream
slender-spire orchid (Piperia unalascensis) -- in July -- Grand Teton National Park, WY green & brown
northern green orchid (Platanthera aquilonis) -- in July -- Boreas Pass Road, Summit County, CO green & brown
shortflowered bog orchid (Platanthera brevifolia) -- in September -- Lincoln National Forest, NM green & brown
Huron green orchid (Platanthera huronensis) -- in July -- Sportsman Lake Road, WY green & brown
Huron green orchid (Platanthera huronensis) -- in July -- Wild Basin, Rocky Mountain NP, CO
one-leaved orchid (Platanthera obtusata) -- in July -- Wild Basin, Rocky Mountain National Park, CO green & brown
purple-petal bog orchid (Platanthera purpurascens) -- in July -- Herman Gulch, Clear Creek County, CO green & brown
bog-orchid (Platanthera sparsiflora) -- in June -- Old Fall River Road, Rocky Mountain National Park, CO green & brown
Ute lady's tresses (Spiranthes diluvialis) -- in August -- Boulder County, CO white & cream
hooded lady's tresses (Spiranthes romanzoffiana) -- in August -- Cub Lake Trail, Rocky Mountain NP, CO white & cream
hooded lady's tresses (Spriranthes romanzoffiana) -- in July -- Yellowstone National Park, WY