| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Ranunculaceae | Ranunculus abortivus | Kidneyleaf Buttercup, Early Wood Buttercup | Bottomland and other moist forests, low fields, disturbed areas, lawns, roadsides. | NL (Labrador) to AK, south to FL, TX, and CO. |  |
| Ranunculaceae | Ranunculus acris | Tall Buttercup, Bitter Buttercup | Pastures, fields, roadsides, lawns, disturbed areas. | Native of Europe. |  |
| Ranunculaceae | Ranunculus allegheniensis | Allegheny Buttercup, Mountain Crowfoot | Cove forests, rich forested slopes, sometimes in drier forests on calcareous or mafic substrates. | MA west to OH, south to w. NC and ne. TN, an Appalachian endemic. |  |
| Ranunculaceae | Ranunculus ambigens | Water-plantain Crowfoot, Water-plantain Spearwort | Marshes, swampy forests, ditches. | ME west to MN, south to VA, NC, ne. TN, w. TN, and LA. |  |
| Ranunculaceae | Ranunculus arvensis | Corn Crowfoot, Hungerweed | Fields, disturbed areas. | Native of Europe. |  |
| Ranunculaceae | Ranunculus bulbosus | Bulbous Buttercup, St. Anthony’s Turnip | Fields, roadsides, disturbed areas. | Native of Europe. |  |
| Ranunculaceae | Ranunculus caricetorum | Northern Swamp Buttercup, Marsh Buttercup | Swampy forests and marshes. | NB west to s. MB, south to NJ, n. VA, s. OH, and s. MO; reports of this species farther south are probably in error. |  |
| Ranunculaceae | Ranunculus fascicularis | Thick-root Buttercup, Early Buttercup | Wet flats with prairie affinities (with Camassia scilloides), rocky barrens and glades over mafic rocks (such as gabbro or diabase), ultramafic outcrop barrens (over olivine), limestone barrens, prairies, oak savannas. | MA and NY west to s. ON, MN, and se. MB, south to c. NC, nc. SC, sw. GA, and e. TX; occurrences which are both south of New England and east of the Appalachians are scattered and disjunct. |  |
| Ranunculaceae | Ranunculus flabellaris | Yellow Water Crowfoot | Pools in floodplains of small stream swamps, ponds, borrow pits, other stagnant or slowly moving waters. | ME west to BC, south to ne. NC, KY, IN, IL, LA, OK, UT, and CA. |  |
| Ranunculaceae | Ranunculus flammula var. ovalis | Greater Creeping Spearwort | Sandy and muddy shores. | NL west to AK, south to e. PA, WI, MN, ND, NM, AZ, and CA. |  |
| Ranunculaceae | Ranunculus flammula var. reptans | Creeping Spearwort | Shallow water. | Circumboreal, south in North America to NJ, WV, MI, MN, and WY. |  |
| Ranunculaceae | Ranunculus harveyi | Harvey's Buttercup, Harvey's Crowfoot | Forests, savannas, shaley bluffs, and prairies, mostly on acidic substrates. | IN, IL, MO, and OK south to TN, AL, and LA. |  |
| Ranunculaceae | Ranunculus hederaceus | Ivy-leaved Water Crowfoot, Longstalked Crowfoot | Coastal brackish marshes, other circumneutral marshes. | Se. PA south to SC on the Coastal Plain; disjunct in NL (Newfoundland); also in Europe. Perhaps questionable whether native in North America, though considered native by most authors, including Wiegleb, Bobrov, & Zalewska-Gałosz (2017). |  |
| Ranunculaceae | Ranunculus hispidus | Hispid Buttercup, Hairy Buttercup | Rich moist forests, creekbanks, mesic to dry woodlands and forests, bottomlands. | MA and VT west to s. ON, n. IL, and se. KS, south to e. and c. NC, s. GA, s. AL, AR, and ne. OK. |  |
| Ranunculaceae | Ranunculus laxicaulis | Coastal Plain Spearwort, Mississippi Buttercup | Marshes, swamps, tidal cypress swamps. | DE south to sw. GA, Panhandle FL (L. Anderson, pers.comm., 2021), west to e. TX, inland in the interior to w. TN, s. IN, s. IL, MO, and KS, almost entirely on the southeastern Coastal Plain. |  |
| Ranunculaceae | Ranunculus lingua | Greater Spearwort | On ballast in a seaport. | Native of Eurasia. |  |
| Ranunculaceae | Ranunculus longirostris | White Water Crowfoot | Submerged in streams and spring ponds. | Sw. QC west to SK, ID, and OR, south to DE, VA, KY, nc. TN, AL, AR, TX, NM, and AZ. |  |
| Ranunculaceae | Ranunculus macranthus | Showy Buttercup | Damp ground. | TX south into Mexico. | |
| Ranunculaceae | Ranunculus marginatus var. trachycarpus | St. Martin’s Buttercup | Moist, disturbed areas, roadsides. | Native of e. Mediterranean Europe. | |
| Ranunculaceae | Ranunculus micranthus | Small-flowered Buttercup, Rock Buttercup | Rich bottomland forests, also upslope on mesic to dry forests and rock outcrops over mafic or calcareous substrates. | MA west to SD, south to e. VA, c. NC, sc. TN, WV, OH, and OK. |  |
| Ranunculaceae | Ranunculus muricatus | Roughseed Buttercup | Ditches and marshes. | Native of Europe. |  |
| Ranunculaceae | Ranunculus parviflorus | Small-flowered Buttercup, Stickseed Crowfoot | Disturbed areas. | Native of Europe. |  |
| Ranunculaceae | Ranunculus pensylvanicus | Bristly Buttercup, Bristly Crowfoot | Wet meadows, floodplains. | NL (Newfoundland) west to AK, south to s. PA (Rhoads & Klein 1993; Rhoads & Block 2007), DE, DC, MD (Whittemore in FNA 1997), WV, OH, n. IN, n. IL, MN, and AZ; also in ne. Asia. |  |
| Ranunculaceae | Ranunculus platensis | Lawns, ditches. | Native of South America. Reported for Beaufort, Berkeley, Lee, and Orangeburg counties, SC (Bradley et al. [in prep.]). |  | |
| Ranunculaceae | Ranunculus pusillus | Low Spearwort, Small Spearwort | Marshes, ditches, other wet habitats. | S. NY south to c. peninsular FL, west to c. TX, north in the interior to OH, IN, and MO. |  |
| Ranunculaceae | Ranunculus recurvatus var. recurvatus | Hooked Buttercup, Hooked Crowfoot | Bottomland forests, cove forests, swamps, mesic slope forests. | ME and QC west to MN, south to sw. GA, MS, and OK. |  |
| Ranunculaceae | Ranunculus repens | Creeping Buttercup, Meg-many-feet | Low meadows, disturbed areas. | Native of Europe. |  |
| Ranunculaceae | Ranunculus sardous | Sardinian Buttercup, Hairy Buttercup | Low fields, disturbed areas. | Native of Europe. |  |
| Ranunculaceae | Ranunculus sceleratus var. sceleratus | Cursed Buttercup, Celery-leaf Crowfoot | Marshes, ditches, and stream margins. | The species is circumboreal, ranging south in North America (partly introduced, at least southward) to n. FL, LA, TX, and CA. |  |
| Ranunculaceae | Ranunculus septentrionalis | Carolina Buttercup | Swamp forests, wet woodlands, open marshy wetlands. | NY west to s. ON, WI, and MN, south to n. peninsular FL, LA, and e. TX. |  |
| Ranunculaceae | Ranunculus subrigidus | White Water Crowfoot | Lakes, ponds, and streams with calcareous waters. | NL west to AK, south to CT, MI, KS, TX, CA, CHH; also in Asia east to nw. Europe. | |
| Ranunculaceae | Ranunculus trichophyllus | Threadleaf Water-crowfoot, White Water-crowfoot | Pools, slow-moving water. | Circumboreal, south in North America to VA, c. TN, IL, IA, NE, NM, AZ, CA, and Mexico. |  |
| Ranunculaceae | Ranunculus trilobus | Fields, roadsides, ditches. | Native of sw. Europe. |  |
Cite as...