Pinaceae Picea engelmannii ssp. mexicana (Martínez) P.A.Schmidt
Etymology
Picea refers to the classical names for spruces.
engelmannii refers to the botanist G. Engelmann.
mexicana refers to Mexico; indicating its habitat.
Colloquial Name
Mexican spruce
Subordinate Taxa
There exist 2 subordinate taxa for Picea engelmannii:
Distribution
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TDWG Codes
7, 76, ARI, 79, MXE, MXE-CO, MXE-CU, MXE-NL
Habitat
The natural habitats for Picea engelmannii ssp. mexicana are temperate forests. It is naturally found at an elevation of at least 3400 up to 3400 metres. There are no conifers associated with Picea engelmannii ssp. mexicana that are known of.
USDA Hardiness zone – 3
Picea engelmannii ssp. mexicana is hardy to USDA Zone 3 (Bannister & Neuner, 2001), meaning its frost tolerance lies somewhere in the range of -40C (-40F) to -34.4C (-30F).
Species Continuity
The population trend for Picea engelmannii ssp. mexicana is decreasing. Currently, there exist about 2000-4000 mature specimen. There are ongoing threats for Picea engelmannii ssp. mexicana and they are listed as follows:
- 1 Habitat Loss & Degradation
- 2 Overexploitation & Resource Use
- 3 Climate Change & Natural Disasters
- 5 Natural System Modifications
IUCN Category – EN
According to the IUCN Red List, Picea engelmannii ssp. mexicana has been assigned the status of EN(Endangered). This means that according to the Red List criteria, this species qualifies as Endangered and is very much at risk.
Superordinate Taxa
The nearest superordinate taxon for Picea engelmannii is Subsect. Pungentes. The coordinate taxa for Picea engelmannii are therefore:
Picea engelmannii ssp. mexicana is further placed under Pinoideae. Picea engelmannii ssp. mexicana is also placed under Pinaceae.
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