The rare and gorgeous pale colored version of this European native, which can be found in the Swiss Alps, where they are called "butter balls" ("Ankeballe" in Swiss-German). Numerous flowers open from bronze-tinged buds to aprox. 1-1/2", pale yellow at first, maturing to alabaster. Despite that they are closely related to buttercups, they are strictly clumping and we haven't encountered a single seedling in 10 years. They need at least average summer moisture and will grow in boggy areas as well.