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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Ranunculus longirostris (Longbeak buttercup)
Smith, R.W.

Ranunculus longirostris

Ranunculus longirostris Godr.

Longbeak Buttercup

Ranunculaceae (Buttercup Family)

Synonym(s): Batrachium circinatum, Batrachium circinatum ssp. subrigidum, Batrachium longirostre, Ranunculus amphibius, Ranunculus aquatilis var. diffusus, Ranunculus aquatilis var. longirostris, Ranunculus aquatilis var. subrigidus, Ranunculus circinatus, Ranunculus circinatus var. subrigidus, Ranunculus subrigidus, Ranunculus usneoides

USDA Symbol: RALO2

USDA Native Status: L48 (N)

 

From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Achene
Size Notes: Stems creeping or floating, up to about 3 feet long.
Leaf: Green

Bloom Information

Bloom Color: White , Yellow
Bloom Time: Apr , May , Jun , Jul , Aug , Sep
Bloom Notes: White or white with yellow marks near center.

Distribution

USA: AL , AR , AZ , CA , CO , CT , DE , IA , ID , IL , IN , KS , KY , MA , MI , MN , MO , MT , ND , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , SD , TN , TX , UT , VA , VT , WA , WI , WY
Canada: NB , NS , ON
Native Habitat: Fresh Water Aquatic

Growing Conditions

Water Use: High
Light Requirement: Part Shade
Soil Moisture: Wet
CaCO3 Tolerance: High
Aquatic: yes

Benefit

Warning: POISONOUS PARTS: All parts. Low toxicity if eaten. Minor skin irritation lasting minutes if touched. Symptoms include burning of the mouth, abdominal pain, vomiting, and bloody diarrhea. Skin redness, burning sensation, and blisters following contact with cell sap. Toxic Principle: Protoanemonin, released from the glycoside ranunculin.(Poisonous Plants of N.C.)
Conspicuous Flowers: yes

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: OBL OBL OBL OBL OBL OBL OBL
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Ranunculus longirostris in USDA Plants
FNA: Find Ranunculus longirostris in the Flora of North America (if available)
Google: Search Google for Ranunculus longirostris

Metadata

Record Modified: 2022-12-07
Research By: TWC Staff

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