Bog Rosemary vs Common Periwinkle

Andromeda polifolia compared with Littorina littorea

Key Differences

• Bog Rosemary is Endangered while Common Periwinkle is Least Concern.

Taxonomic Classification

Rank	Bog Rosemary	Common Periwinkle
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Mollusks)
Class	Magnoliopsida (Dicots)	Gastropoda (Gastropoda)
Order	Ericales (Ericales)	Littorinimorpha (Littorinimorpha)
Family	Ericaceae	Littorinidae
Genus	Andromeda	Littorina
Species	Andromeda polifolia	Littorina littorea

Conservation Status

Bog Rosemary

EN — Endangered

Common Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Bog Rosemary	Common Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bog Rosemary

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Periwinkle

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Bog Rosemary

The Bog Rosemary (Andromeda polifolia) is a species in the genus Andromeda. It is currently classified as Endangered on the IUCN Red List. Found across Europe (5 countries) and North America (United States).

Common Periwinkle

Common Periwinkle (Littorina littorea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States