Autumn fern vs Koala

Dryopteris erythrosora compared with Phascolarctos cinereus

Key Differences

• Autumn fern is Not Evaluated while Koala is Vulnerable.

Taxonomic Classification

Rank	Autumn fern	Koala
Kingdom	Plantae (Pflanzen)	Animalia (Tier)
Phylum	Tracheophyta	Chordata (Chordatiere)
Class	Polypodiopsida (Echte Farne)	Mammalia (Säugetiere)
Order	Polypodiales (Tüpfelfarnartige)	Diprotodontia (Marsupials)
Family	Dryopteridaceae	Phascolarctidae (Koalas)
Genus	Dryopteris	Phascolarctos (Koalas)
Species	Dryopteris erythrosora	Phascolarctos cinereus

Conservation Status

Autumn fern

NE — Not Evaluated

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Autumn fern	Koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Autumn fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (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.

Autumn fern

The Autumn fern (Dryopteris erythrosora) is a species in the genus Dryopteris. Typically found in moist, shaded forest floors and tropical canopies. Dryopteris erythrosora contributes to the biodiversity of its native ecosystems.

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.