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Ranunculus longirostris

Ranunculus longirostris, the longbeak buttercup, is an aquatic plant in the buttercup family.

Last revised
Jul 19, 2026
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≈ 1 min
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Citations
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Wikipedia ↗
Ranunculus longirostris
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Ranunculaceae
Genus: Ranunculus
Species:
R. longirostris
Binomial name
Ranunculus longirostris
Synonyms2
  • Batrachium circinatum (Sibth.) Rchb.
  • Batrachium circinatum (Sibth.) Rchb. ssp. subrigidum (W. Drew) Á. Löve & D. Löve
  • Batrachium longirostre (Godr.) F.W. Schultz
  • Ranunculus amphibius James
  • Ranunculus aquatilis L. var. diffusus With. p.p.1
  • Ranunculus aquatilis L. var. longirostris (Godr.) G. Lawson
  • Ranunculus aquatilis L. var. subrigidus (W. Drew) Breitung
  • Ranunculus circinatus auct. non Sibth.
  • Ranunculus circinatus Sibth. var. subrigidus (W. Drew) L.D. Benson
  • Ranunculus subrigidus W. Drew
  • Ranunculus usneoides Greene

Ranunculus longirostris, the longbeak buttercup,2 is an aquatic plant in the buttercup family.

This species is native to Canada and the United States, where it is widespread. However, it is absent from most of the Southeastern United States.3 It is found in a diversity of freshwater aquatic habitats, often in streams with slow moving water.4

There has been some difficulty in separating this species from the closely related Ranunculus trichophyllus, due in part to the lack of preservation of critical features on herbarium specimens.5

References

References

  1. Accepted name for R. longirostris Tropicos.org. Missouri Botanical Garden. 21 Dec 2011
  2. NRCS. "Ranunculus longirostris". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 18 October 2015.
  3. Kartesz, John T. (2014). "Ranunculus longirostris". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). Retrieved 19 January 2017.
  4. "Flora of the Southern and Mid-Atlantic States". Archived from the original on 2018-10-06. Retrieved 2017-01-19.
  5. University of Michigan Herbarium
External links