Tannenwedel vs Gray-shanked Douc Langur

Hippuris vulgaris compared with Pygathrix cinerea

Key Differences

Tannenwedel is Vulnerable while Gray-shanked Douc Langur is Critically Endangered.

Taxonomic Classification

Rank	Tannenwedel	Gray-shanked Douc Langur
Kingdom	Plantae (Pflanzen)	Animalia (Tier)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordatiere)
Class	Magnoliopsida (Dicots)	Mammalia (Säugetiere)
Order	Lamiales (Lippenblütlerartige)	Primates (Primaten)
Family	Plantaginaceae	Cercopithecidae (Old World Monkeys)
Genus	Hippuris	Pygathrix
Species	Hippuris vulgaris	Pygathrix cinerea

Conservation Status

Tannenwedel

VU — Vulnerable

Gray-shanked Douc Langur

CR — Critically Endangered

Physical Characteristics

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

Habitat & Geographic Range

Tannenwedel

Habitat

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

Range

Widely distributed across Asia (India), Europe (8 countries), and North America (Canada, United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Tannenwedel

<em>Hippuris vulgaris</em>, the common mare's tail, is an aquatic vascular plant in the family Plantaginaceae, found across Asia (including India), Europe, and North America. It is classified as Vulnerable on the IUCN Red List, reflecting population declines associated with wetland drainage, water pollution, and habitat modification. This species typically grows in shallow freshwater habitats including lakes, ponds, rivers, and marshes, forming emergent stands with erect, unbranched stems bearing whorls of narrow leaves. Common mare's tail is often confused with the unrelated horsetail (Equisetum), but belongs to a different plant lineage. It provides important ecological services in aquatic ecosystems, offering shelter for aquatic invertebrates and small fish while helping to stabilize sediments along shorelines. The species is wind-pollinated and produces small, inconspicuous flowers. Its tolerance for cold temperatures enables it to persist in subarctic and alpine freshwater environments. Ongoing wetland loss across its range poses the primary conservation challenge for this species.