All Species in Ranunculus
- Allegheny Mountain Buttercup (Ranunculus allegheniensis)
- Alpine Buttercup (Ranunculus adoneus)
- Anderson's Buttercup (Ranunculus andersonii)
- Arizona Buttercup (Ranunculus arizonicus)
- Arizona Mousetail (Ranunculus cupulatus)
- Blisterwort (Ranunculus recurvatus)
- Blue Mountain Buttercup (Ranunculus oresterus)
- Bristly Buttercup (Ranunculus hispidus)
- Bristly Mousetail (Ranunculus aristatus)
- California Buttercup (Ranunculus californicus)
- Carter's Buttercup (Ranunculus bonariensis)
- Cursed Buttercup (Ranunculus sceleratus)
- Delicate Buttercup (Ranunculus hebecarpus)
- Early Buttercup (Ranunculus fascicularis)
- Eastwood's Buttercup (Ranunculus arcticus)
- Eschscholtz's Buttercup (Ranunculus eschscholtzii)
- Fall Buttercup (Ranunculus acriformis var. aestivalis)
- Frogbit Buttercup (Ranunculus hydrocharoides)
- Glacier Buttercup (Ranunculus glacialis)
- Gmelin's Buttercup (Ranunculus gmelinii)
- Gorman's Buttercup (Ranunculus gormanii)
- Graceful Buttercup (Ranunculus inamoenus)
- Greater Creeping Spearwort (Ranunculus flammula)
- Greenland Buttercup (Ranunculus auricomus)
- Harvey's Buttercup (Ranunculus harveyi)
- Hawai'Ian Buttercup (Ranunculus hawaiensis)
- Heartleaf Buttercup (Ranunculus cardiophyllus)
- High Northern Buttercup (Ranunculus hyperboreus)
- Ice Cold Buttercup (Ranunculus karelinii)
- Ivy Buttercup (Ranunculus hederaceus)
- Labrador Buttercup (Ranunculus rhomboideus)
- Lapland Buttercup (Ranunculus lapponicus)
- Large Buttercup (Ranunculus macranthus)
- Latin American Buttercup (Ranunculus petiolaris)
- Littleleaf Buttercup (Ranunculus abortivus)
- Lobb's Buttercup (Ranunculus lobbii)
- Longbeak Buttercup (Ranunculus longirostris)
- Low Spearwort (Ranunculus pusillus)
- Macoun's Buttercup (Ranunculus macounii)
- Maui Buttercup (Ranunculus mauiensis)
- Mississippi Buttercup (Ranunculus laxicaulis)
- Obscure Buttercup (Ranunculus triternatus)
- Oregon Buttercup (Ranunculus glaberrimus var. ellipticus)
- Pacific Buttercup (Ranunculus pacificus)
- Pallas' Buttercup (Ranunculus pallasii)
- Pennsylvania Buttercup (Ranunculus pensylvanicus)
- Plantainleaf Buttercup (Ranunculus alismifolius)
- Popular Buttercup (Ranunculus populago)
- Pygmy Buttercup (Ranunculus pygmaeus)
- Rock Buttercup (Ranunculus micranthus)
- Rocky Mountain Buttercup (Ranunculus macauleyi)
- Sabine Buttercup (Ranunculus sabinei)
- Sacramento Valley Buttercup (Ranunculus canus)
- Sagebrush Buttercup (Ranunculus glaberrimus)
- Sharpleaf Buttercup (Ranunculus acriformis)
- Snow Buttercup (Ranunculus nivalis)
- Southern Oregon Buttercup (Ranunculus austrooreganus)
- Straightbeak Buttercup (Ranunculus orthorhynchus)
- Suksdorf's Buttercup (Ranunculus eschscholtzii var. suksdorfii)
- Sulphur Buttercup (Ranunculus sulphureus)
- Surefoot Buttercup (Ranunculus pedatifidus)
- Threadleaf Crowfoot (Ranunculus trichophyllus)
- Tiny Mousetail (Ranunculus minimus)
- Tundra Buttercup (Ranunculus eschscholtzii var. eximius)
- Turner's Buttercup (Ranunculus turneri)
- Utah Buttercup (Ranunculus digitatus)
- Vernal Pool Mousetail (Ranunculus sessilis)
- Waterfall False Buttercup (Ranunculus hystriculus)
- Waterplantain Spearwort (Ranunculus ambigens)
- Western Buttercup (Ranunculus occidentalis)
- Western Mousetail (Ranunculus egglestonii)
- Wetslope Buttercup (Ranunculus grayi)
- White Water Crowfoot (Ranunculus aquatilis)
- Woodland Buttercup (Ranunculus uncinatus)