Bastard Nodding Thistle vs Bastard Scotch Thistle

Carduus acanthoides compared with Carduus nutans

Taxonomic Classification

Rank	Bastard Nodding Thistle	Bastard Scotch Thistle
Kingdom same	Plantae (植物)	Plantae (植物)
Phylum same	Magnoliophyta (被子植物門)	Magnoliophyta (被子植物門)
Class same	Magnoliopsida (モクレン綱)	Magnoliopsida (モクレン綱)
Order same	Asterales (キク目)	Asterales (キク目)
Family same	Asteraceae (Daisy Family)	Asteraceae (Daisy Family)
Genus same	Carduus	Carduus
Species	Carduus acanthoides	Carduus nutans

Evolutionary Relationship

Bastard Nodding Thistle and Bastard Scotch Thistle share a common ancestor at the Genus level: Carduus.

Conservation Status

Bastard Nodding Thistle

NT — Near Threatened

Bastard Scotch Thistle

NT — Near Threatened

Physical Characteristics

Attribute	Bastard Nodding Thistle	Bastard Scotch Thistle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bastard Nodding Thistle

Habitat

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

Range

Widely distributed across Asia (4 countries), Europe (18 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Bastard Scotch Thistle

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 6 distinct biome types spanning the Australasia and Neotropic and Oceanian realms.

Range

Widely distributed across Africa (South Africa), Asia (India), Europe (8 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (New Zealand), and South America (Argentina, Brazil, Chile). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Bastard Nodding Thistle

The Bastard Nodding Thistle (Carduus acanthoides) is a species in the genus Carduus. It is currently classified as Near Threatened on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 8 distinct biome types. Populations are also found in montane and highland environments.

Bastard Scotch Thistle

The Bastard Scotch Thistle (Carduus nutans) is a species in the genus Carduus. It is currently classified as Near Threatened on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 6 distinct biome types spanning the Australasia and Neotropic and Oceanian realms.

Shared Countries

Both species can be found in 12 countries:

🇦🇷 Argentina 🇧🇪 Belgium 🇧🇬 Bulgaria 🇨🇦 Canada 🇩🇰 Denmark 🇱🇻 Latvia 🇳🇿 New Zealand 🇳🇴 Norway 🇵🇱 Poland 🇸🇪 Sweden 🇺🇦 Ukraine 🇺🇸 United States