Black Thistle vs Blue star

Cirsium vulgare compared with Amsonia orientalis

Key Differences

• Black Thistle is Least Concern while Blue star is Critically Endangered.

Taxonomic Classification

Rank	Black Thistle	Blue star
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Asterales (Daisies & Sunflowers)	Gentianales (Gentianales)
Family	Asteraceae (Daisy Family)	Apocynaceae
Genus	Cirsium	Amsonia
Species	Cirsium vulgare	Amsonia orientalis

Evolutionary Relationship

Black Thistle and Blue star share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Black Thistle

LC — Least Concern

Blue star

CR — Critically Endangered

Physical Characteristics

Attribute	Black Thistle	Blue star
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Thistle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and montane grasslands and shrublands, among 5 distinct biome types spanning the Afrotropic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (8 countries), Asia (Israel, Japan, Taiwan), Europe (12 countries), North America (5 countries), Oceania and the Pacific (Australia, New Zealand), and South America (7 countries).

Blue star

Habitat

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

Black Thistle

The Black Thistle (Cirsium vulgare) is a species in the genus Cirsium. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and montane grasslands and shrublands, among 5 distinct biome types spanning the Afrotropic an, found across Argentina, Australia, Belgium, Bolivia, Brazil, and more.

Blue star

The Blue star (Amsonia orientalis) is a species in the genus Amsonia. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.