Horticultural form with double flowers of the creeping buttercup, a perennial of the Ranunculaceae family. The type species is common throughout Europe and temperate Asia, where it colonizes damp meadows, ditches, banks, and compacted soils; this cultivar is exclusively known in cultivation, where it has been mentioned since the 16th century.
The plant forms vigorous and spreading clumps, 30 to 50 cm in height, spreading by long stolons that root at the nodes. The leaves are trifoliate, deeply cut and toothed, bright green, often marked with lighter spots.
The flowers are fully double, pompon-like, with an intense and bright yellow, formed of numerous tightly packed petals giving them an almost spherical very characteristic appearance. Sterile due to the duplication of floral organs, this cultivar reproduces only vegetatively, by division or stolons.
In its natural habitat, the type species blooms from May to July. In cultivation, this cultivar blooms from May to June.
Excessively vigorous, it can become invasive, especially in cool to damp soil. It tolerates partial shade and is suitable for difficult places where few other plants establish, but needs to be monitored in a well-tended garden.