Clustered yellowtops vs Polar bear

Flaveria trinervia compared with Ursus maritimus

Key Differences

Clustered yellowtops is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Clustered yellowtops	Polar bear
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Asterales (Daisies & Sunflowers)	Carnivora (Carnivorans)
Family	Asteraceae (Daisy Family)	Ursidae (Bears)
Genus	Flaveria	Ursus (Bears)
Species	Flaveria trinervia	Ursus maritimus

Conservation Status

Clustered yellowtops

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Clustered yellowtops	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Clustered yellowtops

Habitat

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

Range

Widely distributed across Africa (Congo (DRC), Zimbabwe), Asia (4 countries), Europe (Belgium), North America (United States), and South America (Brazil).

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.

Clustered yellowtops

Flaveria trinervia, commonly known as clustered yellowtops, is a fast-growing annual herb in the family Asteraceae. Native to tropical and subtropical regions, it has a remarkably wide distribution spanning Africa, Asia, Europe, and the Americas, where it thrives as a pioneer species in disturbed habitats, roadsides, agricultural margins, and waste ground. The plant typically reaches 30–90 centimeters in height, producing lance-shaped leaves arranged oppositely along branching stems. Its small yellow flower heads are clustered in dense corymbs, giving the species its common name. Flaveria trinervia is notable among plants for utilizing C4 carbon fixation, an efficient photosynthetic pathway that enables rapid growth under warm, high-light conditions with limited water. This metabolic adaptation contributes to its success as a colonizer across diverse tropical and warm-temperate environments. The species is considered Not Evaluated by the IUCN, reflecting its wide range and apparent abundance rather than any formal assessment. Seeds are dispersed by wind, facilitating its spread into new territories. Though not a major agricultural weed, it can establish in cultivated fields. The genus Flaveria, comprising around 23 species, is studied extensively by plant biologists for insights into the evolution of C4 photosynthesis from ancestral C3 pathways.

Polar bear

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.