Common Button Lichen vs Red-and-green Macaw

Buellia erubescens compared with Ara chloropterus

Key Differences

Common Button Lichen is Not Evaluated while Red-and-green Macaw is Least Concern.

Taxonomic Classification

Rank	Common Button Lichen	Red-and-green Macaw
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Aves (Birds)
Order	Caliciales (Caliciales)	Psittaciformes (Parrots)
Family	Caliciaceae	Psittacidae (True Parrots)
Genus	Buellia	Ara (Macaws)
Species	Buellia erubescens	Ara chloropterus

Conservation Status

Common Button Lichen

NE — Not Evaluated

Red-and-green Macaw

LC — Least Concern

Physical Characteristics

Attribute	Common Button Lichen	Red-and-green Macaw
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Red-and-green Macaw

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Widely distributed across Asia (United Arab Emirates), Europe (Norway, United Kingdom), and South America (Colombia, Ecuador, Venezuela).

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.

Red-and-green Macaw

Red-and-green Macaw (Ara chloropterus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.