Erigeron Genus --- Aster subfamily 2.1
western daisy fleabane (Erigeron bellidiastrum) -- in April -- Cibola National Forest near Corona, southern New Mexico white & cream
white daisy fleabane (Erigeron bellidiastrum) -- in June -- Wray, Yuma County, CO white & cream
tufted fleabane (Erigeron caespitosus) -- in June -- Sportsman Lake Road, WY white & cream
horseweed (Erigeron canadensis) -- in August -- Lory State Park, CO white & cream
horseweed (Erigeron canadensis) -- in September -- Bobcat Ridge, a Fort Collins Natural Area, CO
horseweed (Erigeron canadensis) -- in September -- Big Thompson Ponds State Wildlife Area, CO white & cream
hoary fleabane (Erigeron canus) -- in July -- Pawnee National Grassland, CO white & cream
cutleaf daisy (Erigeron compositus) -- in June -- Rist Canyon/ Old Flowers Roads, Larimer County, CO white & cream
cutleaf daisy (Erigeron compositus) -- in May -- Sand Creek National Landmark, southern Wyoming
cutleaf daisy (Erigeron compositus) -- in August -- Mount Margaret Trail, Red Feather Lakes Area, Larimer County, CO
cutleaf fleabane (Erigeron compositus var. glabratus) -- in June -- Steens Mountain Wilderness Area, OR
Navajo fleabane (Erigeron concinnus) -- in April -- rt. 128 north of Moab, southern Utah white & cream
Coulter's fleabane (Erigeron coulteri) -- in July -- Cameron Pass, Colorado State Forest State Park, CO white & cream
Coulter's fleabane (Erigeron coulteri) -- in July -- Zimmerman Lake Trail, Larimer County, CO
Coulter's fleabane (Erigeron coulteri) -- in September -- Marshall Pass Road, Chaffee County, CO
sprawling daisy (Erigeron divergens) -- in May -- Mill Creek Link Trail, Lory State Park, CO white & cream
sprawling daisy (Erigeron divergens) -- in April -- Horsetooth Mountain Open Space, Larimer County, CO
sprawling daisy (Erigeron divergens) -- in August -- Jewell Wetlands Park, Denver Area, CO
Eaton's fleabane (Erigeron eatonii) -- in May -- Sportsman Lake Road, WY white & cream
tall fleabane (Erigeron elatior) -- in July -- Michigan Ditch Trail, Colorado State Forest State Park, CO white & cream
tall fleabane (Erigeron elatior) -- in June -- Kebler Pass Road, Gunnison County, CO
tall fleabane (Erigeron elatior) -- in August -- Mount Evans, Arapaho NF, CO blue & purple
tall fleabane (Erigeron elatior) -- in August -- Shrine Pass Road, border between Eagle and Summit Counties, CO
sprucefir fleabane (Erigeron eximius) -- in July -- Peak 7 area, Summit County, CO white & cream
sprucefir fleabane (Erigeron eximius) -- in August -- Mount Zirkel Wilderness, Jackson County, CO
double pappus
sprucefir fleabane (Erigeron eximius) -- in July -- Young Gulch, Poudre Canyon, Larimer County, CO
Engelmann's fleabane (Erigeron engelmannii) -- in May -- Dinosaur National Monument, Utah white & cream
trailing fleabane (Erigeron flagellaris) -- in June -- Pawnee National Grassland, CO white & cream
beautiful fleabane (Erigeron formosissimus) -- in July -- Red Feather Lakes, Roosevelt National Forest, CO blue & purple
beautiful fleabane (Erigeron formosissimus) -- in July -- Herman Gulch, Clear Creek County, CO blue & purple
beautiful fleabane (Erigeron formosissimus) -- in July -- Red Feather Lakes area, CO
beautiful fleabane (Erigeron formosissimus) -- in July -- Zimmerman Lake Trail, Larimer County, CO
streamside fleabane (Erigeron glabellus) -- in July -- Vedauwoo Recreation Area, southeastern Wyoming
glacial daisy (Erigeron glacialis) -- Herman Gulch, Clear Creek County, CO blue & purple
glacial daisy (Erigeron glacialis) -- in July -- Peak 7 area, Summit County, CO
glacial daisy (Erigeron glacialis) -- in August -- Zimmerman Lake Trail, Larimer County, CO
glacial daisy (Erigeron glacialis) -- in August -- Montgomery Pass Trail, Larimer County, CO
glacial daisy (Erigeron glacialis) -- in September -- Guanella Pass Road, Clear Creek County, CO
Rocky Mountain alpine daisy (Erigeron grandiflorus) -- in August -- Pikes Peak Area, CO blue & purple
Rocky Mountain alpine daisy (Erigeron grandiflorus) -- in July -- Mount Evans, Clear Creek County, CO
Rocky Mountain alpine daisy (Erigeron grandiflorus) -- in July -- Hoosier Pass, Park County, CO
rockslide daisy (Erigeron leiomerus) -- in July -- Long Draw Road, Larimer County montane, Co
blackhead fleabane (Erigeron melanocephalus) -- in July -- Georgia Pass, Park County, CO
blackhead fleabane (Erigeron melanocephalus) -- in August -- Snowy Range, Medicine Bow National Forest, WY white & cream
blackhead fleabane (Erigeron melanocephalus) -- in August -- Zimmerman Lake Trail, Larimer County, CO
plains fleabane (Erigeron modestus) -- in April -- western Texas white & cream
needleleaf fleabane (Erigeron nematophyllus) -- in June -- Sportsman Lake Road, WY white & cream
common fleabane (Erigeron philadelphicus) -- in April -- Natchez Trace Parkway, southern Tennessee white & cream
featherleaf fleabane (Erigeron pinnatisectus) -- in July -- Mount Evans, Clear Creek County, CO
featherleaf fleabane (Erigeron pinnatisectus) -- in July -- Hoosier Pass, Park/Summit Counties, CO
featherleaf fleabane (Erigeron pinnatisectus) -- Crown Point, Roosevelt National Forest, CO blue & purple
featherleaf fleabane (Erigeron pinnatisectus) -- Pikes Peak Area, CO blue & purple
robin's plantain (Erigeron pulchellus) -- in April -- Pisgah National Forest, western North Carolina white & cream
shaggy fleabane (Erigeron pumilus) -- in May -- Pawnee National Grassland, CO
royal fleabane (Erigeron rybius) -- in June -- Cloudcroft, Lincoln National Forest, New Mexico white & cream
aspen fleabane (Erigeron speciosus) -- in July -- Buffalo Pass Road, Jackson County, CO blue & purple
aspen fleabane (Erigeron speciosus) -- in June -- Schofield Pass Road, Gunnison County, CO
aspen fleabane (Erigeron speciosus) -- in July -- Grand Teton National Park, WY
prairie fleabane (Erigeron strigosus) -- in July -- North Fork Trail, Big Thompson Canyon, Larimer County, CO
prairie fleabane (Erigeron strigosus var. strigosus) -- September -- Homestead, Fort Collins Natural Area, Larimer Cty, CO white & cream
threenerve fleabane (Erigeron subtrinervis) -- in July -- Vedauwoo Recreation Area, southern Wyoming
threenerve fleabane (Erigeron subtrinervis) -- in September -- Marshall Pass Road, Chaffee County, CO
running daisy (Erigeron tracyi) -- in June -- Timber Trail, Lory State Park, CO white & cream CO-LSP
running daisy (Erigeron tracyi) -- in July -- Well Gulch Nature Trail, Lory State Park, CO
running daisy (Erigeron tracyi) -- in July -- Devil's Backbone, Larimer County Open Space, CO
running daisy (Erigeron tracyi) -- in April -- Dripping Springs Natural Area, NM
early bluetop fleabane (Erigeron vetensis) -- in May -- Crosier Mountain Trail, Larimer County, CO
early bluetop fleabane (Erigeron vetensis) -- in June -- Curt Gowdy State Park, WY blue & purple
early bluetop fleabane (Erigeron vetensis) -- in May -- West Valley Trail, Lory State Park, CO blue & purple