Canadian beaver vs Clover Grass

Castor canadensis compared with Halophila baillonii

Key Differences

• Canadian beaver is Not Evaluated while Clover Grass is Vulnerable.

Taxonomic Classification

Rank	Canadian beaver	Clover Grass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Liliopsida (Monocots)
Order	Rodentia (Rodents)	Alismatales (Alismatales)
Family	Castoridae (Beavers)	Hydrocharitaceae
Genus	Castor (Beavers)	Halophila
Species	Castor canadensis	Halophila baillonii

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Clover Grass

VU — Vulnerable

Physical Characteristics

Attribute	Canadian beaver	Clover Grass
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).

Clover Grass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

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.

Clover Grass

Halophila baillonii, commonly known as clover grass or simply Halophila, is a small marine seagrass in the family Hydrocharitaceae, order Alismatales. Despite its vernacular name suggesting a terrestrial grass, it is fully aquatic, inhabiting tropical and subtropical shallow marine waters. H. baillonii grows primarily in the Caribbean Sea and Western Atlantic, occurring across island and coastal areas where warm, shallow, clear water and suitable substrate are available. The species forms low-growing meadows of oval to heart-shaped leaf pairs emerging from creeping rhizomes, reaching only a few centimeters in height. As a seagrass, it occupies a critical ecological role in shallow coastal marine ecosystems, providing habitat and feeding grounds for sea turtles, dugongs, fish, and invertebrates, as well as stabilizing sediments and cycling nutrients. H. baillonii is one of the smaller seagrass species and is found growing on sandy, silty, and sometimes rocky substrates in lagoons, reef flats, and sheltered bays at depths ranging from the intertidal zone to approximately fifteen meters. The species is dioecious — with male and female flowers borne on separate plants — and reproduces both sexually and through vegetative spread. H. baillonii is classified as Vulnerable on the IUCN Red List, with populations threatened by coastal development, water quality degradation, increased turbidity, and climate-related changes including sea temperature rise and ocean acidification, which stress shallow seagrass ecosystems throughout the Caribbean region.