Blushing Rosette vs Common Button Lichen

Abortiporus biennis compared with Buellia erubescens

Key Differences

• Blushing Rosette is Near Threatened while Common Button Lichen is Not Evaluated.

Taxonomic Classification

Rank	Blushing Rosette	Common Button Lichen
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum	Basidiomycota (Club Fungi)	Ascomycota (Sac Fungi)
Class	Agaricomycetes (Mushrooms)	Lecanoromycetes (Lecanoromycetes)
Order	Polyporales (Polyporales)	Caliciales (Caliciales)
Family	Podoscyphaceae	Caliciaceae
Genus	Abortiporus	Buellia
Species	Abortiporus biennis	Buellia erubescens

Evolutionary Relationship

Blushing Rosette and Common Button Lichen share a common ancestor at the Kingdom level: Fungi. (Fungi)

Conservation Status

Blushing Rosette

NT — Near Threatened

Common Button Lichen

NE — Not Evaluated

Physical Characteristics

Attribute	Blushing Rosette	Common Button Lichen
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.

Common Button Lichen

Habitat

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

Range

Distributed across Norway, Portugal, Sweden, Taiwan, 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.

Common Button Lichen

<em>Buellia erubescens</em>, commonly known as the common button lichen, is a lichen species with documented occurrences across Asia, Europe, and North America, including countries such as Norway, Portugal, Sweden, Taiwan, and the United States. It typically colonizes diverse terrestrial surfaces, often found on bark, rock, or other substrates in temperate and boreal environments. Common button lichen belongs to the genus <em>Buellia</em> within the family Caliciaceae. As a crustose lichen, it typically forms tightly adhered, crust-like thalli on the surfaces it colonizes, making it characteristic of stable, undisturbed substrates. Biological traits such as average lifespan, thallus size, and biomass of this species remain poorly documented in the scientific literature. The species has not yet been formally evaluated by the IUCN, and its global conservation status therefore remains undetermined. Its occurrence across multiple continents suggests a wide ecological tolerance, though detailed population data and trend assessments are currently lacking for this taxon.

Shared Countries

Both species can be found in 5 countries:

🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇹🇼 Taiwan 🇺🇸 United States