Arctic grass vs Large-Neck Clam

Arctagrostis latifolia compared with Mya arenaria

Key Differences

• Arctic grass is Near Threatened while Large-Neck Clam is Vulnerable.

Taxonomic Classification

Rank	Arctic grass	Large-Neck Clam
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Mollusca (軟体動物)
Class	Liliopsida (単子葉植物綱)	Bivalvia (二枚貝)
Order	Poales (イネ目)	Myida (Myida)
Family	Poaceae (Grass Family)	Myidae
Genus	Arctagrostis	Mya
Species	Arctagrostis latifolia	Mya arenaria

Conservation Status

Arctic grass

NT — Near Threatened

Large-Neck Clam

VU — Vulnerable

Physical Characteristics

Attribute	Arctic grass	Large-Neck Clam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic grass

Habitat

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

Range

Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Large-Neck Clam

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Georgia, Turkey), Europe (22 countries), and North America (Canada, United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Arctic grass

The Arctic grass (Arctagrostis latifolia) is a species in the genus Arctagrostis. It is currently classified as Near Threatened on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Large-Neck Clam

ミゾハマグリ（Mya arenaria）はIUCNレッドリストで危急（VU）に分類されている。野生での絶滅リスクが高く、個体数が減少し、生息地への圧力が増加している。

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden