Ranunculus aquatilis L.
White Water Crowfoot, White Water-crowfoot, Water Buttercup
Ranunculaceae (Buttercup Family)
Synonym(s): Batrachium aquatile, Ranunculus aquatilis var. hispidulus, Ranunculus aquatilis var. typicus, Ranunculus trichophyllus var. hispidulus
USDA Symbol: RAAQ
White water-crowfoot or water buttercup is an aquatic perennial, often growing in dense patches. The submerged stems are 8-24 in. long or longer and bear both submerged and floating foliage. The submerged leaves are divided into narrow, palmate divisions. The floating foliage is three-parted, each lobe again divided. Myriad waxy, white flowers are borne just above the surface of the water. Submerged and floating stems generally forming fairly dense beds with white flowers held on stalks slightly above water.
This plant is also found in Europe. The genus name, from the Latin rana (frog), refers to the wet habitat of some species.
From the Image Gallery
Bloom InformationBloom Color: White
Bloom Time: Apr , May , Jun , Jul , Aug
DistributionUSA: AK , CA , ID , MT , NV , OR , UT , WA , WY
Canada: BC , PE
Native Distribution: AK to CA, e. to MT & CO
Native Habitat: Ponds, ditches & slow streams
Growing ConditionsLight Requirement: Sun
Soil Description: Shallow water.
Conditions Comments: The bloom period of water buttercup is regulated by water temperature. In natural areas, cold water coming off mountain snowbanks delays flowering and thus extends the season.
PropagationDescription: Not Available
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
National Wetland Indicator Status
Additional resourcesUSDA: Find Ranunculus aquatilis in USDA Plants
FNA: Find Ranunculus aquatilis in the Flora of North America (if available)
Google: Search Google for Ranunculus aquatilis
MetadataRecord Modified: 2017-07-07
Research By: TWC Staff