Clasped Pondweed vs Crisp Pondweed

Potamogeton perfoliatus compared with Potamogeton crispus

Key Differences

• Clasped Pondweed is Endangered while Crisp Pondweed is Least Concern.

Taxonomic Classification

Rank	Clasped Pondweed	Crisp Pondweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Liliopsida (Monocots)	Liliopsida (Monocots)
Order same	Alismatales (Alismatales)	Alismatales (Alismatales)
Family same	Potamogetonaceae	Potamogetonaceae
Genus same	Potamogeton	Potamogeton
Species	Potamogeton perfoliatus	Potamogeton crispus

Evolutionary Relationship

Clasped Pondweed and Crisp Pondweed share a common ancestor at the Genus level: Potamogeton.

Conservation Status

Clasped Pondweed

EN — Endangered

Crisp Pondweed

LC — Least Concern

Physical Characteristics

Attribute	Clasped Pondweed	Crisp Pondweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clasped Pondweed

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Saudi Arabia), Europe (8 countries), North America (Canada, Cuba, United States), and Oceania and the Pacific (New Zealand). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Crisp Pondweed

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Widely distributed across Asia (Georgia, Taiwan), Europe (6 countries), North America (5 countries), Oceania and the Pacific (Fiji, Micronesia, New Zealand), and South America (Colombia).

Clasped Pondweed

The Clasped Pondweed (Potamogeton perfoliatus) is a species in the genus Potamogeton. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 8 distinct biome types. Populations are also found in montane and highland environments

Shared Countries

Both species can be found in 10 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇨🇺 Cuba 🇩🇰 Denmark 🇫🇮 Finland 🇳🇿 New Zealand 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States