Photo Credit: Daniel Laubhann
Common Name: Tall Buttercup
Scientific Name: Ranunculus acris
Habitat: roadsides, farmland, wet and dry grassland
Provincial Designation: Noxious
Tall buttercup is native to Europe. It is not clear how or when in was introduced to North America but it has spread widely throughout many U.S. states and Canadian provinces.
Tall buttercup can invade pastures and rangeland, reducing the quality of forage. Fresh plants contain a bitter tasting and irritating oil that is toxic to livestock. If dried, the plant loses its toxicity and does not pose a problem in hay.
The bright yellow and glossy flowers have five petals and sit on long stalks. The leaves are palmate shaped (hand-like) and have long stalks.
The stems are erect, hollow, and sometimes hairy.
Tall buttercup grows 50-100 cm tall.
Learn more about this species:
See Fact Sheets - Alberta Invasive Species Council