Common Rengas vs koala

Gluta wallichii compared with Phascolarctos cinereus

Key Differences

Common Rengas is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Common Rengas	koala
Kingdom	Plantae (thực vật)	Animalia (động vật)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (động vật có dây sống)
Class	Magnoliopsida (Dicots)	Mammalia (lớp Thú)
Order	Sapindales (bộ Bồ hòn)	Diprotodontia (Thú hai răng trước)
Family	Anacardiaceae	Phascolarctidae (Koalas)
Genus	Gluta	Phascolarctos (Koalas)
Species	Gluta wallichii	Phascolarctos cinereus

Conservation Status

Common Rengas

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common Rengas

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 Rengas

<em>Gluta wallichii</em>, the common rengas, is a tropical tree in the family Anacardiaceae, order Sapindales, related to mangoes, cashews, and poison ivy. The species is assessed as Least Concern on the IUCN Red List. Rengas trees typically inhabit lowland and hill dipterocarp forests, as well as peat swamp and freshwater swamp forests across Southeast Asia, particularly in the Malay Peninsula and Borneo. The wood of <em>Gluta wallichii</em> is valued commercially for timber, though the sap contains urushiol-like compounds that can cause severe dermatitis in sensitive individuals, a trait shared with other members of the Anacardiaceae family. The genus Gluta is known for large, canopy-forming trees that typically reach substantial heights in undisturbed rainforest settings. As a flowering angiosperm, rengas produces fruit that serves as food for forest birds and mammals including hornbills and civets, contributing to seed dispersal. Biological traits such as lifespan, body measurements, and detailed diet ecology remain poorly documented for this taxon in published literature. Threats to this species include deforestation, logging, and conversion of peat swamp forests for agriculture, particularly oil palm cultivation, across its Southeast Asian range.

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.