Common Water-Crowfoot vs Green Sea Turtle

Ranunculus aquatilis compared with Chelonia mydas

Key Differences

• Common Water-Crowfoot is Least Concern while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Common Water-Crowfoot	Green Sea Turtle
Kingdom	Plantae (thực vật)	Animalia (động vật)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (động vật có dây sống)
Class	Magnoliopsida (Dicots)	Reptilia (động vật bò sát)
Order	Ranunculales (Bộ Mao lương)	Testudines (Bộ Rùa)
Family	Ranunculaceae	Cheloniidae (Sea Turtles)
Genus	Ranunculus	Chelonia (Green Sea Turtles)
Species	Ranunculus aquatilis	Chelonia mydas

Conservation Status

Common Water-Crowfoot

LC — Least Concern

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Water-Crowfoot	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

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).

Green Sea Turtle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Green Sea Turtle

The green sea turtle is one of the largest sea turtles. They are named for the green color of their cartilage and fat, not their shells.

Shared Countries

Both species can be found in 2 countries:

🇦🇺 Australia 🇲🇽 Mexico