Clustered Mushroom vs koala

Agaricus cappellianus compared with Phascolarctos cinereus

Key Differences

Clustered Mushroom is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	Clustered Mushroom	koala
Kingdom	Fungi (फफूंद)	Animalia (प्राणी)
Phylum	Basidiomycota (Club Fungi)	Chordata (रज्जुकी)
Class	Agaricomycetes (Mushrooms)	Mammalia (स्तनधारी)
Order	Agaricales (Gilled Mushrooms)	Diprotodontia (डाएप्रोटोडोंटिया)
Family	Agaricaceae (Agarics)	Phascolarctidae (Koalas)
Genus	Agaricus (Button Mushrooms)	Phascolarctos (Koalas)
Species	Agaricus cappellianus	Phascolarctos cinereus

Conservation Status

Clustered Mushroom

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Clustered Mushroom	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Clustered Mushroom

Habitat

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

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.

Clustered Mushroom

Agaricus cappellianus is a saprotrophic agaric fungus in the family Agaricaceae, the family containing the cultivated button mushroom (A. bisporus). Like other members of the genus Agaricus, A. cappellianus produces a cap with free gills that start out white or pink and darken to brown or blackish-brown as the spores mature. The stipe bears an annulus (ring) and is separate from the cap at maturity. A. cappellianus is known primarily from Europe, where it grows in grassy habitats, woodland edges, and gardens. The genus Agaricus is large, with hundreds of species globally, and field identification can be challenging. Important identification characters include cap color and texture, flesh-bruising reactions (yellowing or reddening), smell (anise-like vs. phenolic), spore color and size, and stipe characteristics. Some Agaricus species are edible and prized, while others contain phenolic compounds that cause gastrointestinal upset. Formal IUCN conservation status has not been assessed for A. cappellianus. The species has not been widely studied, and limited information is available on its ecology, host range, and distribution.

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.