Cupressus funebris Endl. - syn.Chamaecyparis funebris (Endlicher) Franco - Cupressaceae
Chinese weeping cypress, 柏木 bai mu (chin.), funeral cypress, Tränen-Zypresse
Coniferous tree, up to 35m tall, native to central China.
„Often classified in Chamaecyparis on account of its flattened foliage sprays and relatively few seeds in small cones; however, it is here placed in Cupressus because of its developmental characters (cones maturing in 2nd year) and chemical composition of biflavones.“ http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200005416
The volatile wood oil of C.funebris, also called cedarwood oil, contains α-cedrene (26%), thujopsene (29%), β-cedrene (9%), α-cedrol (9%) widdrol (9%), cuparene (3%), and α-bisabolol (0.8%). „The off-flavor of the Chinese cedarwood oil (C.funebris) is apparently due to minor components.“
[Adams, R. P. „Cedar wood oil-Analyses and properties.“ Essential oils and waxes. Springer Berlin Heidelberg, 1991, 159-173]
„Cupressus funebris is generally regarded as the botanical source of Chinese cedarwood oil. However, due the limited amount of mature forest trees of C. funebris in China, other species in the Cupressaceae that have wood oils high in α-cedrene, β-cedrene, thujopsene and cedrol might be utilized for cedarwood oil production. Wood samples of putative C. funebris were extracted and the extracts were analyzed and compared with several lots of Chinese cedarwood oil. Wood oils were also extracted from Juniperus chinensis and J. c. cv. torrulosa and analyzed. Considerable variation was found among the wood oils of putative C. funebris. The various lots of commercial Chinese cedarwood oils were very variable: α-cedrene (3.6-44.2%), β-cedrene (3.5-11.5%), cis-thujopsene (1.9-37.4%), cedrol (1.7-23.4%). The presence of β-biotol and β-biotone in several Chinese cedarwood oils seems to indicate that wood of Platycladus orientalis (Biota orientalis) was utilized in their production. It appears that Chinese cedarwood oil is derived from a mixture of woods from several Cupressaceae species.“
[Adams, Robert P., and Shufen Li. „The botanical source of Chinese cedarwood oil: Cupressus funebris or Cupressaceae species?.“ Journal of Essential Oil Research 20.3 (2008): 235-242.]
The major components of Cupressus funebris wood oil were: α-cedrene (16.9%), cedrol (7.6%), β-cedrene (5.7%), and α-alaskene (3.3%).
[Carroll, John F., et al. „Essential oils of Cupressus funebris, Juniperus communis, and J. chinensis (Cupressaceae) as repellents against ticks (Acari: Ixodidae) and mosquitoes (Diptera: Culicidae) and as toxicants against mosquitoes.“ Journal of Vector Ecology 36.2 (2011): 258-268]
Dallimore,W., Bruce,A., A handbook of Coniferae, p.197, fig.38 (1923) [G.Lister]