Grayish Button Lichen vs koala

Diplotomma alboatrum compared with Phascolarctos cinereus

Key Differences

Grayish Button Lichen is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Grayish Button Lichen	koala
Kingdom	Fungi (เห็ดรา)	Animalia (สัตว์)
Phylum	Ascomycota (Sac Fungi)	Chordata (สัตว์มีแกนสันหลัง)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Caliciales (Caliciales)	Diprotodontia (Marsupials)
Family	Caliciaceae	Phascolarctidae (Koalas)
Genus	Diplotomma	Phascolarctos (Koalas)
Species	Diplotomma alboatrum	Phascolarctos cinereus

Conservation Status

Grayish Button Lichen

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Grayish Button Lichen	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Grayish Button Lichen

Habitat

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

Range

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

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.