Curled Thistle vs slender thistle

Carduus crispus compared with Carduus tenuiflorus

Key Differences

• Curled Thistle is Least Concern while slender thistle is Near Threatened.

Taxonomic Classification

Rank	Curled Thistle	slender thistle
Kingdom same	Plantae (thực vật)	Plantae (thực vật)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Asterales (Bộ Cúc)	Asterales (Bộ Cúc)
Family same	Asteraceae (Daisy Family)	Asteraceae (Daisy Family)
Genus same	Carduus	Carduus
Species	Carduus crispus	Carduus tenuiflorus

Evolutionary Relationship

Curled Thistle and slender thistle share a common ancestor at the Genus level: Carduus.

Conservation Status

Curled Thistle

LC — Least Concern

slender thistle

NT — Near Threatened

Physical Characteristics

Attribute	Curled Thistle	slender thistle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Curled Thistle

Habitat

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

Range

Widely distributed across Asia (Japan, North Korea), Europe (7 countries), and North America (Canada, United States).

slender thistle

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (7 countries), North America (United States), Oceania and the Pacific (Australia), and South America (Argentina, Brazil, Chile). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Shared Countries

Both species can be found in 7 countries:

🇧🇪 Belgium 🇨🇿 Czech Republic 🇩🇰 Denmark 🇯🇵 Japan 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States