Common Toadskin Lichen vs koala

Lasallia papulosa compared with Phascolarctos cinereus

Key Differences

• Common Toadskin Lichen is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	Common Toadskin Lichen	koala
Kingdom	Fungi (真菌界)	Animalia (动物界)
Phylum	Ascomycota (子囊菌门)	Chordata (脊索动物门)
Class	Lecanoromycetes (茶漬綱)	Mammalia (哺乳動物)
Order	Umbilicariales (石耳目)	Diprotodontia (雙門齒目)
Family	Umbilicariaceae	Phascolarctidae (Koalas)
Genus	Lasallia	Phascolarctos (Koalas)
Species	Lasallia papulosa	Phascolarctos cinereus

Conservation Status

Common Toadskin Lichen

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common Toadskin Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and 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 Toadskin Lichen

<em>Lasallia papulosa</em>, known as the common toadskin lichen, is a foliose lichen in the family Umbilicariaceae, belonging to the broader group of rock-dwelling umbilicate lichens. This species typically grows attached to exposed siliceous rock surfaces, particularly granite, quartzite, and other acidic rock outcrops in montane, boreal, and arctic environments across North America and parts of Europe and Asia. The thallus is typically olive-brown to dark gray in color, with a distinctively blistered or pustulate upper surface texture that gives the species its common name. It attaches to the substrate by a single central holdfast (the umbilicus), allowing the irregular, lobed thallus edges to lift freely. <em>Lasallia papulosa</em> is ecologically important as a pioneer species on bare rock, contributing to weathering processes and providing microhabitat and food for specialized invertebrates. It is sensitive to air pollution, particularly sulfur dioxide, and is often used as a bioindicator of air quality. The geographic range spans rocky regions of eastern North America, Scandinavia, the Alps, and parts of northern Asia. The species is currently assessed as Least Concern by the IUCN. Biological traits such as average growth rates, thallus dimensions, and biomass estimates remain poorly documented in the scientific literature.

koala

澳大利亚东部和东南部的标志性有袋类动物，体重最大可达15千克，为了节省低热量桉树叶食物所提供的能量，每天最多睡眠22小时。高度特化，能够处理会致大多数其他哺乳动物死亡的有毒桉树成分，拥有专门适应解毒功能的肠道微生物群。因衣原体病、栖息地开发和气候变化导致种群锐减，2022年被列为濒危物种。