| Author | L. | |
| Distribution | Throughout nearly all of the state; scarce in the Sandhills proper and the southern Coastal Plain.
Native of Eurasia; in N.A. most of eastern U.S. and maritime Canada, also B.C. to northern CA. | |
| Abundance | Common to often abundant, except rare in the Sandhills and southern Coastal Plain. | |
| Habitat | Roadsides, fields, meadows, fallow crop fields, campuses, urban and suburban lawns, forest clearings, disturbed soil. Many a cow pasture is colored yellow with thousands of plants in bloom. | |
| Phenology | Flowering and fruiting April-July. | |
| Identification | Bulbous Buttercup is a very familiar and quite attractive, weedy buttercup. It is a perennial with largish (for a buttercup)flowers -- about 4/5-inch across -- and reflexed sepals. The basal leaves are divided into 3 major, roundish lobes, each further cut or toothed; stem leaves are smaller and divided into narrow segments. The reflexed sepals are a good clue; R. sardous also has these reflexed, but it is an annual and lacks a cormose (bulbous) base. R. acris has normally spreading sepals, not reflexed. | |
| Taxonomic Comments | | |
| Other Common Name(s) | | |
| State Rank | SE | |
| Global Rank | GNR | |
| State Status | | |
| US Status | | |
| USACE-agcp | FAC link |
| USACE-emp | FAC link |
