Ranunculus aquatilis (White Water Crowfoot)
|Also known as:||Long-beak Buttercup|
|Habitat:||sun; slow streams, ponds, lakes, wet ditches, marshes|
|Bloom season:||June - August|
|Plant height:||1 to 6 inches above water|
|Wetland Indicator Status:||GP: OBL MW: none NCNE: none|
|MN county distribution (click map to enlarge):|
|National distribution (click map to enlarge):|
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A single flower on a long naked stalk arising from a leaf axil. Flowers are 1/3 to 2/3 inch across, have 5 oval white petals with a spot of yellow at the base, and many yellow stamens surrounding a yellow center that matures to green. 5 rounded green sepals behind the flower are much shorter than the petals.
Leaves and stem:
Leaves are finely divided into many thread-like segments, round to fan-shaped in outline, to ¾ inch long and about 1 inch wide, alternately attached. Stems and leaves are all submersed and mostly hairless.
The flower center expands to a round to oval seed head, the seeds smooth to roughly hairy and with a beak almost as long as the seed body.
There are 2 varieties of Ranunculus aquatilis in North America; var. aquatilis is a more western species and var. diffusus is found in Minnesota as well as much of the US. This aquatic species also commonly goes by Latin name Ranunculus longirostris.
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Where to buy native seed and plants ↓
- White Water Crowfoot plant
- more plants
- a colony of plants
- White Water Crowfoot stranded in the mud, with Water Plantain
Photos courtesy Peter M. Dziuk taken in Anoka and Isanti counties, MN, and in North Dakota.
Have you seen this plant in Minnesota, or have any other comments about it?