Canadian beaver vs River False Buttonweed

Castor canadensis compared with Spermacoce tenuior

Key Differences

• Canadian beaver is Not Evaluated while River False Buttonweed is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	River False Buttonweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Gentianales (Gentianales)
Family	Castoridae (Beavers)	Rubiaceae
Genus	Castor (Beavers)	Spermacoce
Species	Castor canadensis	Spermacoce tenuior

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

River False Buttonweed

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	River False Buttonweed
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

River False Buttonweed

Habitat

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

Range

Distributed across Colombia, Cuba, and Madagascar.

Canadian beaver

The largest rodent in North America, Canadian beavers weigh up to 32 kg and are master ecosystem engineers inhabiting rivers, lakes, and wetlands across Canada and the northern United States. By felling trees and constructing dams up to hundreds of meters long, beavers create ponds that provide habitat for hundreds of species. Their lodges and canals transform entire watersheds. Once nearly hunted to extinction for their fur, beaver populations have recovered strongly.