Aster Subfamily 3.2 (Asteraceae) -- disk and yellow RAYs -- Genus G to O
Aster 3.1 (Genus A to F) -- Aster 3.2 (Genus G to O) -- Aster 3.3 (Genus P to R) -- Aster 3.4 (Genus S to Z)
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blanketflower (Gaillardia aristata) supporting Schinia masoni -- in June -- Soapstone Paririe, a Fort Collins Natural Area, CO
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blanketflower (Gaillardia aristata) -- in July -- County Road 41, Larimer County, CO
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blanket flower (Gaillardia aristata) -- in July -- Lory State Park, CO
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onion blanketflower (Gaillardia multiceps) -- in April -- Big Bend Ranch SP, TX
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red dome blanketflower (Gaillardia pinnatifida) -- in April -- Big Bend National Park, Texas
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red dome blanketflower (Gaillardia pinnatifida) -- in April -- Canyonlands National Park, UT
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red dome blanketflower (Gaillardia pinnatifida) -- in May -- Navajo Lake State Park, NM
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Indian blanket (Gaillardia pulchella) -- in April -- Route 54 near Carrizozo, southern New Mexico
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Indian blanket (Gaillardia pulchella) -- in June -- Bluff Lake Nature Center, Denver Area, CO
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Indian blanket (Gaillardia pulchella) -- in July -- Watson Lake SWA, Bellvue, CO
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hairy desert sunflower (Geraea canescens) -- in March -- Sonoran Desert National Monument, AZ
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hairy desert sunflower (Geraea canescens) -- in March -- Death Valley National Park, CA
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roughgumweed (Grindelia scabra) -- in September -- Cloudcroft, Lincoln National Forest, NM
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curlycup gumweed (Grindelia squarrosa) -- in September -- Lory State Park, CO
curlycup gumweed (Grindelia squarrosa) -- in September -- Reservoir Ridge, Fort Collins Natural Area, CO
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subalpine gumweed (Grindelia subalpina) -- in July -- Lory State Park, CO
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subalpine gumweed (Grindelia subalpina) -- in September -- Hidden Valley Parking Lot, Trail Ridge Road, RMNP, CO
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subalpine gumweed (Grindelia subalpina) -- in September -- Kimmons Trail, Lory State Park, CO
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threadleaf snakeweed (Gutierrezia microcephala) -- in September -- White Sands National Monument, NM
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broom snakeweed (Gutierrezia sarothrae) -- in August -- Orchard Cove Trail, Lory State Park, CO
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broom snakeweed (Gutierrezia sarothrae) -- in August -- Soapstone Prairie, Fort Collins Natural Area, CO
broom snakeweed (Gutierrezia sarothrae) -- in August -- Eagle's Nest Open Space, Larimer County, CO
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fivenerve helianthella (Helianthella quinquenervis) -- in July -- Routt National Forest, CO
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fivernerve helianthella (Helianthella quinquenervis) -- in July -- Herman Gulch, Clear Creek County, CO
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fivenerve helianthella (Helianthella quinquenervis) -- in July -- Boreas Pass Road, Park County, CO
fivenerve helianthella (Helianthella quinquenervis) -- in June -- Ohio Pass Road, Gunnison County, CO
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oneflower helianthella (Helianthella uniflora) -- in July -- Grand Teton National Park, WY
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common sunflower (Helianthus annuus) -- in July -- Orchard Cove Trail, Lory State Park, CO
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common sunflower (Helianthus annuus) -- in August -- Arapaho Bend, Fort Collins Natural Area, CO
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sawtooth sunflower (Helianthus grosseserratus) -- in September -- Cloudcroft, Lincoln National Forest, NM
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Maximilian sunflower (Helianthus maximiliani) -- in September -- Big Thompson Ponds State Wildlife Area, CO
Nuttall's sunflower (Helianthus nuttallii) -- in June -- Well Gulch Nature Trail, Lory State Park, CO
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Nuttall's sunflower (Helianthus nuttallii) -- in August -- Riverbend Ponds, Fort Collins Natural Area, CO
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stiff sunflower (Helianthus pauciflorus) -- in July -- Buffalo Pass Road, Jackson County, CO
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prairie sunflower (Helianthus petiolaris) -- in August -- Bluff Lake Nature Center, Denver Area, CO
prairie sunflower (Helianthus petiolaris) -- in May -- San Juan County, Utah
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little sunflower (Helianthus pumilus) -- in June -- Lory State Park, CO
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little sunflower (Helianthus pumilus) -- in August -- Timber Trail, Lory State Park, CO
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little sunflower (Helianthus pumilus) -- in August -- Indian Meadows North, Poudre Canyon, Larimer County, CO
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longleaf false goldeneye (Heliomeris longifolia) -- in September -- Cloudcroft, Lincoln National Forest, NM
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longleaf false goldeneye (Heliomeris longifolia) -- in September -- Lincoln National Forest, NM
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showy goldeneye (Heliomeris multiflora) -- in September -- Cloudcroft, Lincoln National Forest, NM NM-S
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showy goldeneye (Heliomeris multiflora) -- in July -- Buffalo Pass Road, Jackson County, CO
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showy goldenye (Heliomeris multiflora) -- in July -- Boreas Pass Road 10, Summit County, CO
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mountain oxeye (Heliopsis parvifolia) -- in September -- Lincoln National Forest, NM
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rockyscree false goldenaster (Heterotheca fulcrata) -- in June -- South Saint Vrain Creek, Roosevelt National Forest
rockyscree false goldenaster (Heterotheca fulcrata) -- in July -- Lumpy Ridge Trail, RMNP, Larimer County, CO
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rockyscree false golden aster (Heterotheca fulcrata) -- in July -- Buffalo Pass Road, Jackson County, CO
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rockyscree false goldenaster (Heterotheca fulcrata) -- in September -- Marshall Pass Road, Chaffee County, CO
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alpine false goldenaster (Heterotheca pumila) -- in July -- Herman Gulch, Clear Creek County, Arapaho National Forest, CO
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alpine false goldenaster (Heterotheca pumila) -- in July -- Weston Pass Road, Lake County, CO
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alpine false goldenaster (Heterotheca pumila) -- in August -- Lake Katherine Trail, Mount Zirkel Wilderness, Jackson County, CO
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hairy false goldenaster (Heterotheca villosa) -- in June -- Orchard Cove Trail, Lory State Park, CO CO-LSP
hairy false goldenaster (Heterotheca villosa) -- in September -- Coyote Ridge, Fort Collins Natural Area, CO
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hairy false golden aster (Heterotheca villosa) -- in August -- Arthur's Rock Trail, Lory State Park, CO
foliose false goldenaster (Heterotheca villosa var. foliosa) -- in July -- Kreutzer Nature Trail, Poudre Canyon, Larimer County, CO
foliose false goldenaster (Heterotheca villosa var. foliosa) -- in September -- Guanella Pass Road, Park County, CO
hairy false goldenaster (Heterotheca villosa var. nana) -- in July -- Well Gulch Trail, Lory State Park, CO
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hairy false goldenaster (Heterotheca villosa) -- in May -- Canyons of the Ancients National Monument, CO
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hairy false goldenaster (Heterotheca villosa var. villosa) -- in September -- Bellaire Lake, Red Feather Lakes Area, Larimer Cty, CO
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old-man-of-the-mountain (Hymenoxys grandiflora) -- in June -- Trail Ridge Road, Rocky Mountain NP, CO
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old-man-of-the-mountain (Hymenoxys grandiflora) -- in August -- Pikes Peak Area, CO
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orange sneezeweed (Hymenoxys hoopesii) -- in July -- McCullough Gulch, Summit County, CO
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orange sneezeweed (Hymenoxys hoopesii) -- in June -- Steens Mountain Wilderness Area, OR
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orange sneezeweed (Hymenoxys hoopesii) -- in September -- Guanella Pass Road, Park County, CO
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bitter rubberweed (Hymenoxis odorata) -- in May -- Picketwire Canyon, Comanche National Grassland, CO
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Colorado rubberweed (Hymenoxys richardsonii var. floribunda) -- in July -- FR 659 near Fairplay, Park County, CO
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branched lagophylla (Lagophylla ramosissima) -- in July -- Lava Beds National Monument, CA
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needle goldfields (Lasthenia gracilis) -- in March -- I-15 in southern Utah
mountain tarweed (Madia glomerata) -- in July -- Buffalo Pass Road, Jackson County, CO
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grassy tarweed (Madia gracilis) -- in July -- Humboldt Bay National Wildlife Refuge, northern California
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