Bristly Beard Lichen vs koala

Usnea hirta compared with Phascolarctos cinereus

Key Differences

• Bristly Beard Lichen is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Bristly Beard Lichen	koala
Kingdom	Fungi (nấm)	Animalia (động vật)
Phylum	Ascomycota (Sac Fungi)	Chordata (động vật có dây sống)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (lớp Thú)
Order	Lecanorales (Lecanorales)	Diprotodontia (Thú hai răng trước)
Family	Parmeliaceae	Phascolarctidae (Koalas)
Genus	Usnea	Phascolarctos (Koalas)
Species	Usnea hirta	Phascolarctos cinereus

Conservation Status

Bristly Beard Lichen

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Bristly Beard 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.

Bristly Beard Lichen

The Bristly Beard Lichen (Usnea hirta) is a species in the genus Usnea. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

koala

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.