Baishan Fir vs Common Button Lichen

Abies beshanzuensis compared with Buellia erubescens

Key Differences

• Baishan Fir is Critically Endangered while Common Button Lichen is Not Evaluated.

Taxonomic Classification

Rank	Baishan Fir	Common Button Lichen
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Coniferophyta (Conifers)	Ascomycota (Sac Fungi)
Class	Pinopsida (Conifers)	Lecanoromycetes (Lecanoromycetes)
Order	Pinales (Pines & Allies)	Caliciales (Caliciales)
Family	Pinaceae (Pine Family)	Caliciaceae
Genus	Abies	Buellia
Species	Abies beshanzuensis	Buellia erubescens

Conservation Status

Baishan Fir

CR — Critically Endangered

Common Button Lichen

NE — Not Evaluated

Physical Characteristics

Attribute	Baishan Fir	Common Button Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Baishan Fir

Habitat

Typically found in temperate and boreal forests, often at higher elevations.

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.

Baishan Fir

The Baishan Fir (Abies beshanzuensis) is a species in the genus Abies. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in temperate and boreal forests, often at higher elevations.

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.