Tsuga mertensiana ssp. mertensiana var. mertensiana

Pinaceae Tsuga mertensiana ssp. mertensiana var. mertensiana (Bong.) Carrière

Etymology
Tsuga refers to the Japanese name for this tree.
mertensiana refers to the plant collector K. H. Mertens.

Colloquial Name
Mountain hemlock

Subordinate Taxa
There exist 3 subordinate taxa for Tsuga mertensiana:

Distribution

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TDWG Codes
7, 70, ASK, 71, BRC, 73, IDA, ORE, WAS, 76, CAL

Habitat
The natural habitats for Tsuga mertensiana ssp. mertensiana var. mertensiana are temperate forests. The natural elevation is unknown. There are no conifers associated with Tsuga mertensiana ssp. mertensiana var. mertensiana that are known of.

USDA Hardiness zone – 4
Tsuga mertensiana ssp. mertensiana var. mertensiana is hardy to USDA Zone 4 (Bannister & Neuner, 2001), meaning its frost tolerance lies somewhere in the range of -34.4C (-30F) to 28.9C (-20F).

Species Continuity
The population trend for Tsuga mertensiana ssp. mertensiana var. mertensiana is unknown. There are no known threats for Tsuga mertensiana ssp. mertensiana var. mertensiana.

IUCN Category – LC
According to the IUCN Red List, Tsuga mertensiana ssp. mertensiana var. mertensiana has been assigned the status of LC(Least Concern). This means that according to the Red List criteria, this species is not qualified as threatened.

Superordinate Taxa
The nearest superordinate taxon for Tsuga mertensiana is Tsuga. The coordinate taxa for Tsuga mertensiana are therefore:

Tsuga mertensiana ssp. mertensiana var. mertensiana is further placed under Abietoideae. Tsuga mertensiana ssp. mertensiana var. mertensiana is also placed under Pinaceae.