Bartram Shadbush vs Black Knapweed

Amelanchier bartramiana compared with Centaurea nigra

Key Differences

• Bartram Shadbush is Least Concern while Black Knapweed is Not Evaluated.

Taxonomic Classification

Rank	Bartram Shadbush	Black Knapweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Rosales (Roses & Allies)	Asterales (Daisies & Sunflowers)
Family	Rosaceae (Rose Family)	Asteraceae (Daisy Family)
Genus	Amelanchier	Centaurea
Species	Amelanchier bartramiana	Centaurea nigra

Evolutionary Relationship

Bartram Shadbush and Black Knapweed share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Bartram Shadbush

LC — Least Concern

Black Knapweed

NE — Not Evaluated

Physical Characteristics

Attribute	Bartram Shadbush	Black Knapweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bartram Shadbush

Habitat

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

Range

Distributed across Canada, France, and United States.

Black Knapweed

Habitat

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

Range

Widely distributed across Asia (Japan), Europe (7 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Chile).

Bartram Shadbush

The Bartram Shadbush (Amelanchier bartramiana) is a species in the genus Amelanchier. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Black Knapweed

The Black Knapweed (Centaurea nigra) is a species in the genus Centaurea. Typically found in diverse terrestrial habitats from tropical forests to temperate regions. Its geographic range spans Widely distributed across Asia (Japan), Europe (7 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Chile).

Shared Countries

Both species can be found in 3 countries:

🇨🇦 Canada 🇫🇷 France 🇺🇸 United States