Koala vs Bastard-Brunnenkresse

Phascolarctos cinereus compared with Nasturtium sterile

Key Differences

• Koala is Vulnerable while Bastard-Brunnenkresse is Least Concern.

Taxonomic Classification

Rank	Koala	Bastard-Brunnenkresse
Kingdom	Animalia (Tier)	Plantae (Pflanzen)
Phylum	Chordata (Chordatiere)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Säugetiere)	Magnoliopsida (Dicots)
Order	Diprotodontia (Marsupials)	Brassicales (Kreuzblütlerartige)
Family	Phascolarctidae (Koalas)	Brassicaceae
Genus	Phascolarctos (Koalas)	Nasturtium
Species	Phascolarctos cinereus	Nasturtium sterile

Conservation Status

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Bastard-Brunnenkresse

LC — Least Concern

Physical Characteristics

Attribute	Koala	Bastard-Brunnenkresse
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	75 cm	—
Average Weight	10.0 kg	—

Habitat & Geographic Range

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.

Bastard-Brunnenkresse

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Austria, Sweden, and United States.

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.