« back to search Ranunculus californicus Date March 1999 Media FormatSlide PhotographerDieter H. Wilken Location Information Place Name Sonoma Country: United States State: California County: Sonoma Specific LocationSonoma Plant Information Plant(s) Pictured California Buttercup (Ranunculus californicus) More Info Alternative Common NamesButtercup, California, Common Buttercup Native StatusNative Plant Type/Growth Formperennial herb Blooming PeriodSpring, Winter Plant Communities Ranunculus californicus, Forest, Grassland, Wetland/Riparian, Woodland, Foothill Woodland, Mixed Evergreen Forest, Northern Coastal Scrub, Northern Oak Woodland, Red Fir Forest, Valley Grassland, Yellow Pine Forest, Ranunculus californicus Flower Color Yellow Primary Plant Part Whole Plant, Leaves, Flower Close-up Image & Format Details Index NumberSL_00975 Decade1990s Photo OrientationPortrait Collection Dieter Wilken Image & Format Tags Color photograph Film Type Kodachrome