Taxus Nomenclature, Page 5

©The World Botanical Associates Web Page
Prepared by Richard W. Spjut
April 2003
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.
(http://www.amorteira.org/PDF/yew%20workshop_secondcall.pdf)
The III International Workshop was published in 2013, including posters, 271 pp.
The IV International Workshop, Oct 23–25, 2014, http://www.taxus.cat/jornades2014

Names denoted by an asterisk (*) are proposed unpublished names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 baccata Alliance

                                                                 Taxus baccata

                                                                     var. baccata
                                                                     var. dovastoniana
                                                                     var. elegantissima
                                                                             cv. ‘Repandens’
                                                                     var. erecta
                                                                     var. ericoides
                                                                     var. fructo-lutea
                                                                     var. glauca
                                                                     var. jacksonii
                                                                     var. pyramidalis
                                                                     var. subpyramidalis
                                                                     var. variegata
                                                                     var. washingtonii

Taxus contorta

var. contorta
var. mucronata

                                                                 Taxus fastigiata

                                                                     var. fastigiata
                                                                     var. nana*
                                                                     var. sparsifolia*

Taxus recurvata

                                                                     var. recurvata
                                                                     var. intermedia*
                                                                     var. linearis*

                                                           Taxus cuspidata Alliance

Taxus biternata

Taxus caespitosa

                                                                     var. angustifolia
                                                                     var. caespitosa
                                                                     var. latifolia

Taxus canadensis

                                                                     var. canadensis
                                                                     var. adpressa
                                                                     var. minor

Taxus cuspidata

Taxus umbraculifera

                                                                     var. umbraculifera
                                                                     var. hicksii
                                                                     var. microcarpa
                                                                     var. nana

Taxus sumatrana Group

Taxus celebica

Taxus kingstonii

                                                                Taxus mairei
                                                                    var. mairei
                                                                    var. speciosa

Taxus sumatrana

                                                                    var. sumatrana
                                                                    var. atrovirens*
                                                                    var. concolorata*

Taxus wallichiana Group

Subgroup Wallichiana

Taxus brevifolia

                                                                    var. brevifolia
                                                                    var. polychaeta
                                                                    var. reptaneta
                                                                    var. nov.*

Taxus florinii

Taxus globosa

var. globosa
var. floridana

Taxus suffnessii

Taxus wallichiana

var. wallichiana
var. yunnanensis

Literature Cited (For additional literature and review, see Introduction to Taxus)

Nomenclature, Keys and Descriptions for Species of Taxus With Discussion and Citation of Specimens Studied

Nomenclature, Keys and Descriptions
for Species of Taxus
With Discussion and Citation
of Specimens Studied