Common Houseleek vs Gray-shanked Douc Langur

Sempervivum tectorum compared with Pygathrix cinerea

Key Differences

• Common Houseleek is Least Concern while Gray-shanked Douc Langur is Critically Endangered.

Taxonomic Classification

Rank	Common Houseleek	Gray-shanked Douc Langur
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Saxifragales (Saxifragales)	Primates (Primates)
Family	Crassulaceae	Cercopithecidae (Old World Monkeys)
Genus	Sempervivum	Pygathrix
Species	Sempervivum tectorum	Pygathrix cinerea

Conservation Status

Common Houseleek

LC — Least Concern

Gray-shanked Douc Langur

CR — Critically Endangered

Physical Characteristics

Attribute	Common Houseleek	Gray-shanked Douc Langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Houseleek

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).

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Houseleek

<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.