Grass-Leaf Pondweed vs Gray-shanked Douc Langur

Potamogeton gramineus compared with Pygathrix cinerea

Key Differences

• Grass-Leaf Pondweed is Endangered while Gray-shanked Douc Langur is Critically Endangered.

Taxonomic Classification

Rank	Grass-Leaf Pondweed	Gray-shanked Douc Langur
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Alismatales (Alismatales)	Primates (Primates)
Family	Potamogetonaceae	Cercopithecidae (Old World Monkeys)
Genus	Potamogeton	Pygathrix
Species	Potamogeton gramineus	Pygathrix cinerea

Conservation Status

Grass-Leaf Pondweed

EN — Endangered

Gray-shanked Douc Langur

CR — Critically Endangered

Physical Characteristics

Attribute	Grass-Leaf Pondweed	Gray-shanked Douc Langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Grass-Leaf Pondweed

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (8 countries) and North America (Canada, United States). Currently classified as Endangered 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.