Ranunculus abortivus
| kidney-leaved buttercup, kidney-leaved crowfoot |
Ranunculus acris
| tall buttercup, tall crowfoot |
Ranunculus allegheniensis
| Allegheny buttercup, Allegheny crowfoot |
Ranunculus ambigens
| American spearwort, American crowfoot |
Ranunculus arvensis
| corn buttercup, corn crowfoot |
Ranunculus bulbosus
| bulbous buttercup, bulbous crowfoot |
Ranunculus caricetorum
| northern swamp buttercup, northern swamp crowfoot |
Ranunculus cymbalaria
| seaside buttercup, seaside crowfoot |
Ranunculus fascicularis
| early buttercup, early crowfoot |
Ranunculus flabellaris
| yellow water buttercup, yellow water crowfoot |
Ranunculus flammula
| |
Ranunculus flammula var. ovalis
| wider-leaved creeping spearwort |
Ranunculus flammula var. reptans
| narrow-leaved creeping spearwort |
Ranunculus hispidus
| woodland buttercup, woodland crowfoot |
Ranunculus longirostris
| long-beaked white water buttercup |
Ranunculus micranthus
| small-flowered buttercup, small-flowered crowfoot |
Ranunculus muricatus
| rough-fruited buttercup, rough-fruited crowfoot |
Ranunculus pensylvanicus
| bristly buttercup, bristly crowfoot |
Ranunculus pusillus
| low spearwort |
Ranunculus recurvatus var. recurvatus
| hooked buttercup, hooked crowfoot |
Ranunculus repens
| creeping buttercup, creeping crowfoot |
Ranunculus rhomboideus
| prairie buttercup, prairie crowfoot |
Ranunculus sardous
| hairy buttercup, hairy crowfoot |
Ranunculus sceleratus var. sceleratus
| cursed buttercup, cursed crowfoot |
Ranunculus septentrionalis
| southern swamp buttercup, southern swamp crowfoot |
Ranunculus trichophyllus
| white water buttercup |