Spiny naiad vs Wright's waternymph

Najas marina compared with Najas wrightiana

Taxonomic Classification

Rank	Spiny naiad	Wright's waternymph
Kingdom same	Plantae (พืช)	Plantae (พืช)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Liliopsida (Monocots)	Liliopsida (Monocots)
Order same	Alismatales (อันดับขาเขียด)	Alismatales (อันดับขาเขียด)
Family same	Hydrocharitaceae	Hydrocharitaceae
Genus same	Najas	Najas
Species	Najas marina	Najas wrightiana

Evolutionary Relationship

Spiny naiad and Wright's waternymph share a common ancestor at the Genus level: Najas.

ดู: Genus: Najas

Conservation Status

Spiny naiad

EN — Endangered

Wright's waternymph

EN — Endangered

Physical Characteristics

Attribute	Spiny naiad	Wright's waternymph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Spiny naiad

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and deserts and xeric shrublands, among 5 distinct biome types spanning the Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Sri Lanka, Taiwan), Europe (5 countries), North America (6 countries), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Wright's waternymph

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Cuba and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.