Pseudotsuga sinensis var. gaussenii

Pinaceae Pseudotsuga sinensis var. gaussenii (Flous) Silba

Etymology
Pseudotsuga refers to ‘almost Tsuga’; indicating a similarity to Tsuga species.
sinensis refers to China; indicating its habitat.
gaussenii refers to the French botanist H. M. Gaussen.

Colloquial Name
Gaussen’s Douglas-fir

Subordinate Taxa
There exist 3 subordinate taxa for Pseudotsuga sinensis:

Distribution

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TDWG Codes
3, 36, CHC, CHC-GZ, CHS, CHS-AH, CHS-JX, CHS-ZJ

Habitat
The natural habitats for Pseudotsuga sinensis var. gaussenii are temperate forests. The natural elevation is unknown. There are no conifers associated with Pseudotsuga sinensis var. gaussenii that are known of.

USDA Hardiness zone – 8
Pseudotsuga sinensis var. gaussenii is hardy to USDA Zone 8 (Bannister & Neuner, 2001), meaning its frost tolerance lies somewhere in the range of -12.2C (10F) to -6.7C (20F).

Species Continuity
The population trend for Pseudotsuga sinensis var. gaussenii is unknown. There are ongoing threats for Pseudotsuga sinensis var. gaussenii and they are listed as follows:

• 2 Overexploitation & Resource Use
  • 2.1 Logging & Wood Harvesting

IUCN Category – DD
According to the IUCN Red List, Pseudotsuga sinensis var. gaussenii has been assigned the status of DD(Data Defficient). This means that according to the Red List criteria, not enough data has been obtained about its abundance and/or distribution.

Superordinate Taxa
The nearest superordinate taxon for Pseudotsuga sinensis is Pseudotsuga. The coordinate taxa for Pseudotsuga sinensis are therefore:

Pseudotsuga sinensis var. gaussenii is further placed under Laricoideae. Pseudotsuga sinensis var. gaussenii is also placed under Pinaceae.