Big-Leaf Maple vs Cotton Thistle

Acer macrophyllum compared with Onopordum acanthium

Key Differences

• Big-Leaf Maple is Least Concern while Cotton Thistle is Endangered.

Taxonomic Classification

Rank	Big-Leaf Maple	Cotton Thistle
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Sapindales (Sapindales)	Asterales (Daisies & Sunflowers)
Family	Sapindaceae	Asteraceae (Daisy Family)
Genus	Acer	Onopordum
Species	Acer macrophyllum	Onopordum acanthium

Evolutionary Relationship

Big-Leaf Maple and Cotton Thistle share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Big-Leaf Maple

LC — Least Concern

Cotton Thistle

EN — Endangered

Physical Characteristics

Attribute	Big-Leaf Maple	Cotton Thistle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big-Leaf Maple

Habitat

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

Range

Distributed across Belgium, Canada, Ireland, and United States.

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.

Big-Leaf Maple

The Big-Leaf Maple (Acer macrophyllum) is a species in the genus Acer. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇮🇪 Ireland 🇺🇸 United States