American Arbor-Vitae vs koala

Thuja occidentalis compared with Phascolarctos cinereus

Key Differences

American Arbor-Vitae is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	American Arbor-Vitae	koala
Kingdom	Plantae (พืช)	Animalia (สัตว์)
Phylum	Coniferophyta (Conifers)	Chordata (สัตว์มีแกนสันหลัง)
Class	Pinopsida (Conifers)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Pinales (Pines & Allies)	Diprotodontia (Marsupials)
Family	Cupressaceae	Phascolarctidae (Koalas)
Genus	Thuja	Phascolarctos (Koalas)
Species	Thuja occidentalis	Phascolarctos cinereus

Conservation Status

American Arbor-Vitae

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	American Arbor-Vitae	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

American Arbor-Vitae

Habitat

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

Range

Widely distributed across Africa (Libya), Asia (Armenia, Taiwan, Turkey), Europe (21 countries), North America (Canada, United States), and South America (Brazil, Colombia).

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.

American Arbor-Vitae

The American Arbor-Vitae (Thuja occidentalis) is a species in the genus Thuja. Typically found in temperate and boreal forests, often at higher elevations.

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.