Echte Hauswurz, Dachwurz vs Eisbär

Sempervivum tectorum compared with Ursus maritimus

Key Differences

Echte Hauswurz, Dachwurz is Least Concern while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Echte Hauswurz, Dachwurz	Eisbär
Kingdom	Plantae (Pflanzen)	Animalia (Tier)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordatiere)
Class	Magnoliopsida (Dicots)	Mammalia (Säugetiere)
Order	Saxifragales (Steinbrechartige)	Carnivora (Raubtiere)
Family	Crassulaceae	Ursidae (Bears)
Genus	Sempervivum	Ursus (Bears)
Species	Sempervivum tectorum	Ursus maritimus

Conservation Status

Echte Hauswurz, Dachwurz

LC — Least Concern

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Echte Hauswurz, Dachwurz	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Echte Hauswurz, Dachwurz

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (17 countries), and North America (Canada, United States).

Eisbär

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.

Echte Hauswurz, Dachwurz

<em>Sempervivum tectorum</em>, commonly known as the common houseleek or hen and chicks, is a succulent perennial in the family Crassulaceae. It is classified as Least Concern on the IUCN Red List, with a broad distribution spanning Asia (including Taiwan), 17 European countries, and North America. The species typically grows on rocky outcrops, old walls, rooftops, and dry, well-drained soils in temperate and montane environments. Adapted to harsh, nutrient-poor conditions, it has been cultivated for centuries as both an ornamental and a plant with traditional medicinal uses. Diet information for this species is not available in current records. Biological traits of this species remain poorly documented in the scientific literature.

Eisbär

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.