Common Stinkhorn vs koala

Phallus impudicus compared with Phascolarctos cinereus

Key Differences

Common Stinkhorn is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Common Stinkhorn	koala
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Phallales (Phallales)	Diprotodontia (Marsupials)
Family	Phallaceae	Phascolarctidae (Koalas)
Genus	Phallus	Phascolarctos (Koalas)
Species	Phallus impudicus	Phascolarctos cinereus

Conservation Status

Common Stinkhorn

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Stinkhorn	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Common Stinkhorn

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Found across Europe (7 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.

Common Stinkhorn

<em>Phallus impudicus</em>, commonly known as the common stinkhorn, is a basidiomycete fungus belonging to the family Phallaceae within the order Phallales. It is widely distributed across Europe and North America, typically found in deciduous and mixed woodlands, gardens, and areas with rich organic soil. The fungus emerges from an egg-like structure partially buried in the substrate, rapidly developing a spongy, white stalk topped with a dark olive-green gleba that produces a powerful fetid odor resembling rotting flesh. This smell typically attracts flies and other insects, which disperse the spores. <em>Phallus impudicus</em> is saprotrophic, obtaining nutrients by decomposing dead organic matter, and plays an important ecological role in nutrient cycling within forest ecosystems. Biological traits such as average lifespan, precise dimensions under field conditions, and detailed dietary preferences remain poorly documented in the scientific literature. The species is currently assessed as Least Concern by the IUCN, reflecting its broad distribution and apparent population stability across its native range. It has no known significant threats at the global level.

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.