Ranunculus genus --- Buttercup family

littleleaf buttercup (Ranunculus abortivus) -- in July -- North Shields Ponds, Fort Collins Natural Area, CO        yellow & orange     

sharpleaf buttercup (Ranunculus acriformis) -- in July -- Chambers Lake Area, Larimer County, CO    yellow & orange

snow buttercup (Ranunculus adoneus) -- in July -- Trail Ridge Road, Rocky Mountain National Park, CO       yellow & orange       

snow buttercup (Ranunculus adoneus) -- in July -- Rollins Pass Road, Gilpin County, CO

plantainleaf buttercup (Ranunculus alismifolius) -- in May -- Pingree Park, Roosevelt National Forest, CO       yellow & orange      

plantainleaf buttercup (Ranunculus alismifolius) -- in June -- Steens Mountain Wilderness Area, OR  

plantainleaf buttercup (Ranunculus alismifolius) -- in July -- Rollins Pass Road, Gilpin county, CO

heartleaf buttercup (Ranunculus cardiophyllus) -- in May -- Crosier Mountain Trail, Larimer County, CO

heartleaf buttercup (Ranunculus cardiophyllus) -- in July -- Chambers Lake, Roosevelt National Forest, CO       yellow & orange      

marsh buttercup (Ranunculus cymbalaria) -- in May -- Yampa Bench Road, Dinosaur National Monument, CO     yellow & orange  ​

marsh buttercup (Ranunculus cymbalaria) -- in September -- Homestead, Fort Collins Natural Area, Larimer County, CO

​creeping spearwort (Ranunculus flammula var. ovalis) -- in September -- Bellaire Lake, Red Feather Lakes Area, Larimer County, CO

greater creeping spearwort (Ranunculus flammula var. reptans) -- in July -- Shoshone NF, Fremont County, WY  ​yellow & orange 

elliptical buttercup (Ranunculus glaberrimus var. ellipticus)  -- in June -- Pattee Canyon, Lolo NF, northern Montana    yellow & orange  ​ 

elliptical buttercup (Ranunculus glaberrimus var. ellipticus) -- in April -- Timber Trail, Lory State Park, CO       

elliptical buttercup (Ranunculus glaberrimus var. ellipticus) -- in April -- Sand Creek National Landmark, WY/CO       

elliptical buttercup (Ranunculus glaberrimus var. ellipticus) -- in June -- Steens Mountain Wilderness Area, OR      yellow & orange  ​

hispid buttercup (Ranunculus hispidus) -- in April -- Natchez Trace Parkway, southern Tennessee       yellow & orange  

graceful buttercup (Ranunculus inamoenus) -- in June -- Pingree Park, Roosevelt National Forest, CO     yellow & orange   

​water crowfoot (Ranunculus longirostris) -- in July -- Sand Creek National Natural Landmark, WY white & cream     

water crowfoot (Ranunculus longirostris) -- in July -- Sheldon National Wildlife Refuge, NV       white & cream      NV-N

Macoun's buttercup (Ranunculus macounii) -- in June -- Young Gulch, Poudre Canyon, Larimer County, CO

Macoun's buttercup (Ranunculus macounii) -- in July -- Elko County, NV      yellow & orange  ​    

creeping buttercup (Ranunculus repens) -- in July --  Oregon coast, southern Oregon          yellow & orange    

creeping buttercup (Ranunculus repens) -- in May -- Pingree Park, Roosevelt National Forest, CO      yellow & orange    

creeping buttercup (Ranunculus repens) -- in July -- Ramsay-Shockey Open Space, Larimer County

cursed buttercup (Ranunculus sceleratus var. multifidus) -- in May -- North Shields Ponds, Fort Collins NA, CO   yellow & orange  ​

cursed buttercup (Ranunculus sceleratus var. multifidus)  -- in April -- Carizzo Canyon, Comanche National Grassland, CO