Cotton Thistle vs Long-tailed Ground Squirrel

Onopordum acanthium compared with Urocitellus undulatus

Key Differences

• Cotton Thistle is Endangered while Long-tailed Ground Squirrel is Least Concern.

Taxonomic Classification

Rank	Cotton Thistle	Long-tailed Ground Squirrel
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Asterales (Daisies & Sunflowers)	Rodentia (Rodents)
Family	Asteraceae (Daisy Family)	Sciuridae (Squirrels)
Genus	Onopordum	Urocitellus
Species	Onopordum acanthium	Urocitellus undulatus

Conservation Status

Cotton Thistle

EN — Endangered

Long-tailed Ground Squirrel

LC — Least Concern

Physical Characteristics

Attribute	Cotton Thistle	Long-tailed Ground Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cotton Thistle

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Georgia, India, Japan), Europe (22 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Brazil, Chile). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Long-tailed Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.