Common Yellow Wood-Sorrel vs Polar bear

Oxalis dillenii compared with Ursus maritimus

Key Differences

Common Yellow Wood-Sorrel is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Common Yellow Wood-Sorrel	Polar bear
Kingdom	Plantae (식물)	Animalia (동물)
Phylum	Magnoliophyta (피자식물문)	Chordata (척삭동물)
Class	Magnoliopsida (목련강)	Mammalia (포유류)
Order	Oxalidales (괭이밥목)	Carnivora (식육목)
Family	Oxalidaceae	Ursidae (Bears)
Genus	Oxalis	Ursus (Bears)
Species	Oxalis dillenii	Ursus maritimus

Conservation Status

Common Yellow Wood-Sorrel

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Yellow Wood-Sorrel	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Common Yellow Wood-Sorrel

Habitat

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

Range

Widely distributed across Asia (Japan, Turkey), Europe (23 countries), and North America (Canada, United States).

Polar bear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Yellow Wood-Sorrel

<em>Oxalis dillenii</em>, the common yellow wood sorrel or slender yellow wood sorrel, is a small annual to short-lived perennial herbaceous plant in the family Oxalidaceae. It is native to eastern North America and has been introduced to many parts of Europe, Asia, and other temperate regions, where it occurs as a weed of cultivated ground, roadsides, waste places, lawns, and disturbed habitats. The plant typically grows 10–35 cm tall and produces trifoliate leaves with three notched, heart-shaped leaflets that fold downward in darkness or heat. Small bright yellow flowers with five petals are produced from spring through autumn. The cylindrical seed pods eject seeds forcibly at maturity. Biological traits such as average lifespan and body measurements remain poorly documented in consolidated scientific literature. Like other Oxalis species, <em>Oxalis dillenii</em> contains oxalic acid, giving leaves a sour taste and making them mildly toxic when consumed in large quantities. The plant provides nectar for small generalist pollinators. It has not been formally evaluated for IUCN conservation status but is considered common and widespread with no conservation concerns across its introduced and native ranges.

Polar bear

지구상에서 가장 큰 육상 육식동물인 북극곰은 700kg을 넘을 수 있으며 캐나다에서 러시아까지 북극 해빙 전역에 분포한다. 고리 물범과 수염 물범을 사냥하기 위해 해빙에 의존하는 고도로 특수화된 해양 포유류이다. 광활한 거리를 헤엄쳐 다닐 수 있는 뛰어난 수영 실력을 가지고 있다. 취약종으로 등재되어 있으며, 기후 변화로 인한 급격한 북극 해빙 감소로 심각한 압력을 받고 있다.