Cephalotaxus harringtonii var. wilsoniana

Cephalotaxaceae Cephalotaxus harringtonii var. wilsoniana (Hayata) Kitam.

Etymology
Cephalotaxus refers to ‘head’ taxus; referring to the seed cone structure and its similarity to taxus.
harringtonii refers to the Earl of Harrington, who donated it to a pinetum at Woburn Abbey.
wilsoniana refers to the plant collector E. H. Wilson.

Colloquial Name
Wilson’s plum yew

Subordinate Taxa
There exist 3 subordinate taxa for Cephalotaxus harringtonii:

Distribution

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TDWG Codes
3, 38, TAI

Habitat
The natural habitats for Cephalotaxus harringtonii var. wilsoniana are temperate forests. It is naturally found at an elevation of at least 2000 up to 2000 metres. There are no conifers associated with Cephalotaxus harringtonii var. wilsoniana that are known of.

USDA Hardiness zone – 8
Cephalotaxus harringtonii var. wilsoniana 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 Cephalotaxus harringtonii var. wilsoniana is decreasing. There are ongoing threats for Cephalotaxus harringtonii var. wilsoniana and they are listed as follows:

• 1 Habitat Loss & Degradation
  • 1.1 Agriculture & Forestry

IUCN Category – NT
According to the IUCN Red List, Cephalotaxus harringtonii var. wilsoniana has been assigned the status of NT(Near Threatened). This means that according to the Red List criteria, this species is not threatened, but is close to having this status.

Superordinate Taxa
The nearest superordinate taxon for Cephalotaxus harringtonii is Cephalotaxus. The coordinate taxa for Cephalotaxus harringtonii are therefore:

Cephalotaxus harringtonii var. wilsoniana is also placed under Cephalotaxaceae. As Cephalotaxus is the sole genus under Cephalotaxaceae, this family is a monophyletic family. Cephalotaxaceae is found in South and Southeast Asia, with China as its hotspot for Cephalotaxaceae diversity.

This map shows botanical records (points) for this taxon. By opening the map’s sidebar (collapsed by default) you can toggle visibility or change the basemap. By clicking on records, you reveal more information.