World Botanical Associates Web Page
Prepared by Richard W. Spjut
Last Updated: 11 August 2007, June 2010, May 2014
An outline of the nomenclature below may also be found in Hageneder, Yew:
A History (2007), Appendix II. Included are key characteristics and geographical
distribution of species and varieties. A revised taxonomic key to the
species and varieties of Taxus (Taxaceae) was submitted to the III International Workshop,
for Poster, Mar 25-26, 2010, Ponferrada, León, Spain.
The III International Workshop was published in 2013, including posters, 271 pp.
The IV International Workshop, Oct 23–25, 2014, http://www.taxus.cat/
Names denoted by an asterisk (*) are proposed unpublished names
Updates/Additions: Taxus brevifolia var. nov.
Images and discussion on the Taxus sumatrana Group
1. Key to Species Groups and Subgroups of Taxus
Taxus wallichiana Group, Subgroup wallichiana (North America, E India-SW China)
Taxus wallichiana Group, Subgroup chinensis (India to Indonesia and Philippines)
Taxus sumatrana Group (India to Indonesia and Philippines)
Taxus baccata Alliance (Euro-Mediterranean)
Taxus cuspidata Alliance (E Asia, E North America)
2. Nomenclature and Descriptions for Species of Taxus
North American Species of the Taxus wallichiana Group
Taxus baccata Group
Taxus sumatrana Group
Literature Cited (For additional literature and review, see Introduction to Taxus)