Japanese Hemlock vs Mountain Hemlock

Tsuga sieboldii compared with Tsuga mertensiana

Key Differences

• Japanese Hemlock is Near Threatened while Mountain Hemlock is Not Evaluated.

Taxonomic Classification

Rank	Japanese Hemlock	Mountain Hemlock
Kingdom same	Plantae (Pflanzen)	Plantae (Pflanzen)
Phylum same	Coniferophyta (Conifers)	Coniferophyta (Conifers)
Class same	Pinopsida (Conifers)	Pinopsida (Conifers)
Order same	Pinales (Koniferen)	Pinales (Koniferen)
Family same	Pinaceae (Pine Family)	Pinaceae (Pine Family)
Genus same	Tsuga	Tsuga
Species	Tsuga sieboldii	Tsuga mertensiana

Evolutionary Relationship

Japanese Hemlock and Mountain Hemlock share a common ancestor at the Genus level: Tsuga.

Conservation Status

Japanese Hemlock

NT — Near Threatened

Mountain Hemlock

NE — Not Evaluated

Physical Characteristics

Attribute	Japanese Hemlock	Mountain Hemlock
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Japanese Hemlock

Habitat

Typically found in temperate and boreal forests, often at higher elevations.

Mountain Hemlock

Habitat

Typically found in temperate and boreal forests, often at higher elevations.

Range

Distributed across Canada, Denmark, Iceland, Norway, and Sweden.