Common Spike-thorn vs koala

Gymnosporia buxifolia compared with Phascolarctos cinereus

Key Differences

Common Spike-thorn is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Common Spike-thorn	koala
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Magnoliopsida (モクレン綱)	Mammalia (哺乳類)
Order	Celastrales (ニシキギ目)	Diprotodontia (カンガルー目)
Family	Celastraceae	Phascolarctidae (Koalas)
Genus	Gymnosporia	Phascolarctos (Koalas)
Species	Gymnosporia buxifolia	Phascolarctos cinereus

Conservation Status

Common Spike-thorn

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common Spike-thorn

Habitat

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

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 Spike-thorn

<em>Gymnosporia buxifolia</em>, commonly known as the common spike-thorn, is a spiny shrub or small tree in the family Celastraceae, native to sub-Saharan Africa. This species typically inhabits a variety of vegetation types including bushveld, riverine thickets, rocky hillsides, forest margins, and disturbed areas, demonstrating considerable ecological versatility. It is widely distributed across eastern and southern Africa, with populations recorded in countries including South Africa, Zimbabwe, Mozambique, Tanzania, and Kenya, among others in the region. Classified as Least Concern on the IUCN Red List, <em>Gymnosporia buxifolia</em> is considered stable throughout much of its range. The plant is characterised by its stout axillary thorns, small dark green leaves, and small white to cream flowers followed by three-lobed capsular fruits. It plays an ecological role as a host plant for various insects and as a food source for browsing mammals. Biological traits such as average lifespan, body dimensions, and dietary specifics remain poorly documented in the scientific literature for this plant species. The species is also used in traditional medicine across parts of its range, and its dense thorny growth makes it useful as a natural hedge or barrier plant in agricultural and homestead settings.

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。