Northern Naiad vs Ricefield waternymph

Najas gracillima compared with Najas graminea

Taxonomic Classification

Rank	Northern Naiad	Ricefield waternymph
Kingdom same	Plantae (植物)	Plantae (植物)
Phylum same	Magnoliophyta (木兰植物门)	Magnoliophyta (木兰植物门)
Class same	Liliopsida (百合纲)	Liliopsida (百合纲)
Order same	Alismatales (泽泻目)	Alismatales (泽泻目)
Family same	Hydrocharitaceae	Hydrocharitaceae
Genus same	Najas	Najas
Species	Najas gracillima	Najas graminea

Evolutionary Relationship

Northern Naiad and Ricefield waternymph share a common ancestor at the Genus level: Najas.

Conservation Status

Northern Naiad

LC — Least Concern

Ricefield waternymph

LC — Least Concern

Physical Characteristics

Attribute	Northern Naiad	Ricefield waternymph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Northern Naiad

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (Canada, United States).

Ricefield waternymph

Habitat

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

Range

Widely distributed across Africa (Guinea), Asia (Taiwan), Europe (10 countries), North America (United States), Oceania and the Pacific (Papua New Guinea), and South America (Brazil).

Shared Countries

Both species can be found in 5 countries:

🇫🇷 France 🇬🇷 Greece 🇮🇹 Italy 🇹🇼 Taiwan 🇺🇸 United States