Allen's Buttercup vs Common Water-Crowfoot

Ranunculus allenii compared with Ranunculus aquatilis

Taxonomic Classification

Rank	Allen's Buttercup	Common Water-Crowfoot
Kingdom same	Plantae (растения)	Plantae (растения)
Phylum same	Magnoliophyta (магнолиофиты)	Magnoliophyta (магнолиофиты)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Ranunculales (лютикоцветные)	Ranunculales (лютикоцветные)
Family same	Ranunculaceae	Ranunculaceae
Genus same	Ranunculus	Ranunculus
Species	Ranunculus allenii	Ranunculus aquatilis

Evolutionary Relationship

Allen's Buttercup and Common Water-Crowfoot share a common ancestor at the Genus level: Ranunculus.

Conservation Status

Allen's Buttercup

LC — Least Concern

Common Water-Crowfoot

LC — Least Concern

Physical Characteristics

Attribute	Allen's Buttercup	Common Water-Crowfoot
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Allen's Buttercup

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada and Norway.

Common Water-Crowfoot

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Asia (India), Europe (5 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (Chile).

Allen's Buttercup

The Allen's Buttercup (Ranunculus allenii) is a species in the genus Ranunculus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Common Water-Crowfoot

<em>Ranunculus aquatilis</em>, commonly known as the common water crowfoot or white water buttercup, is an aquatic flowering plant in the family Ranunculaceae. It is classified as Least Concern by the IUCN and enjoys a nearly cosmopolitan distribution, occurring in freshwater habitats across Europe, Asia, North America, and parts of Africa and South America. The species typically inhabits ponds, ditches, slow rivers, and streams, where it roots in sediment and produces both submerged finely divided leaves and floating rounded leaves. The white five-petaled flowers emerge above the water surface from spring through early summer, providing important nectar resources for pollinators. <em>Ranunculus aquatilis</em> is highly adaptable, with leaf morphology shifting according to water depth and flow velocity. Submerged leaves are thread-like and flexible, reducing drag in flowing water, while floating leaves are broad and rounded to maximize light capture. The plant typically reproduces both sexually through seed production and vegetatively through fragmentation of stems and rhizomes. Biological traits including average lifespan, height, and mass remain poorly documented in standardized databases. Ecologically, common water crowfoot is a foundational species in many freshwater plant communities, providing structural habitat for invertebrates and small fish, contributing to oxygenation, and serving as a food source for waterfowl and aquatic herbivores across its wide global range.

Shared Countries

Both species can be found in 2 countries:

🇨🇦 Canada 🇳🇴 Norway