Brittle Naiad vs Thin-leaved Naiad

Najas minor compared with Najas tenuifolia

Key Differences

• Brittle Naiad is Critically Endangered while Thin-leaved Naiad is Least Concern.

Taxonomic Classification

Rank	Brittle Naiad	Thin-leaved Naiad
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 minor	Najas tenuifolia

Evolutionary Relationship

Brittle Naiad and Thin-leaved Naiad share a common ancestor at the Genus level: Najas.

Conservation Status

Brittle Naiad

CR — Critically Endangered

Thin-leaved Naiad

LC — Least Concern

Physical Characteristics

Attribute	Brittle Naiad	Thin-leaved Naiad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brittle Naiad

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical coniferous forests, and temperate broadleaf and mixed forests, among 9 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Pakistan, Taiwan), Europe (4 countries), and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Thin-leaved Naiad

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Brittle Naiad

The Brittle Naiad (Najas minor) is a species in the genus Najas. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical coniferous forests, and temperate broadleaf and mixed forests, among 9 distinct biome types spanning the Indomalayan an