Bighead knapweed vs black-calabash

Centaurea macrocephala compared with Amphitecna latifolia

Key Differences

• Bighead knapweed is Not Evaluated while black-calabash is Least Concern.

Taxonomic Classification

Rank	Bighead knapweed	black-calabash
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Asterales (Daisies & Sunflowers)	Lamiales (Lamiales)
Family	Asteraceae (Daisy Family)	Bignoniaceae
Genus	Centaurea	Amphitecna
Species	Centaurea macrocephala	Amphitecna latifolia

Evolutionary Relationship

Bighead knapweed and black-calabash share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Bighead knapweed

NE — Not Evaluated

black-calabash

LC — Least Concern

Physical Characteristics

Attribute	Bighead knapweed	black-calabash
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bighead knapweed

Habitat

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

Range

Found across Europe (6 countries) and North America (Canada, United States).

black-calabash

Habitat

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

Range

Distributed across Colombia and Cuba.

Bighead knapweed

The Bighead knapweed (Centaurea macrocephala) is a species in the genus Centaurea. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

black-calabash

The Black-calabash (Amphitecna latifolia) is a species in the genus Amphitecna. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.