Black Stubble Lichen vs Blue star

Calicium abietinum compared with Amsonia orientalis

Key Differences

• Black Stubble Lichen is Endangered while Blue star is Critically Endangered.

Taxonomic Classification

Rank	Black Stubble Lichen	Blue star
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Lecanoromycetes (Lecanoromycetes)	Magnoliopsida (Dicots)
Order	Caliciales (Caliciales)	Gentianales (Gentianales)
Family	Caliciaceae	Apocynaceae
Genus	Calicium	Amsonia
Species	Calicium abietinum	Amsonia orientalis

Conservation Status

Black Stubble Lichen

EN — Endangered

Blue star

CR — Critically Endangered

Physical Characteristics

Attribute	Black Stubble Lichen	Blue star
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Stubble Lichen

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Blue star

Habitat

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

Black Stubble Lichen

The Black Stubble Lichen (Calicium abietinum) is a species in the genus Calicium. It is currently classified as Endangered on the IUCN Red List. Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region, found across Colombia, Denmark, Norway, Portugal, Sweden, 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.