Blushing Rosette vs Speckled Tar Spot

Abortiporus biennis compared with Rhytisma punctatum

Key Differences

• Blushing Rosette is Near Threatened while Speckled Tar Spot is Not Evaluated.

Taxonomic Classification

Rank	Blushing Rosette	Speckled Tar Spot
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum	Basidiomycota (Club Fungi)	Ascomycota (Sac Fungi)
Class	Agaricomycetes (Mushrooms)	Leotiomycetes (Leotiomycetes)
Order	Polyporales (Polyporales)	Rhytismatales (Rhytismatales)
Family	Podoscyphaceae	Rhytismataceae
Genus	Abortiporus	Rhytisma
Species	Abortiporus biennis	Rhytisma punctatum

Evolutionary Relationship

Blushing Rosette and Speckled Tar Spot share a common ancestor at the Kingdom level: Fungi. (Fungi)

Conservation Status

Blushing Rosette

NT — Near Threatened

Speckled Tar Spot

NE — Not Evaluated

Physical Characteristics

Attribute	Blushing Rosette	Speckled Tar Spot
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blushing Rosette

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Speckled Tar Spot

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States.

Blushing Rosette

The Blushing Rosette (Abortiporus biennis) is a species in the genus Abortiporus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States