Eleutherococcus

{{Short description|Genus of flowering plants}}

{{Automatic taxobox

|image = Eleutherococcus gracilistylus BotGardBln1105 LeavesFallFruits.JPG

|image_caption = Eleutherococcus gracilistylus

|taxon = Eleutherococcus

|authority = Maxim.

|subdivision_ranks = Species

|subdivision = See text

|synonyms = Acanthopanax (Decne. & Planch.) Miq.

}}

Eleutherococcus is a genus of 38 species{{Harvnb|Tumiłowicz|Banaszczak|2006}},p.40, citing Frodin, Govaerts 2003 of thorny shrubs and trees in the family Araliaceae. They are native to eastern Asia, from southeast Siberia and Japan to the Philippines and Vietnam. 18 species come from China, from central to western parts.{{Harvnb|Tumiłowicz|Banaszczak|2006}},p.40, citing Xiang, Lowry 2006

Perhaps the best known in the West is the species E. senticosus used as herbal medicine,{{Harvnb|Foster|Yue|1992}},Herbal Emissaries pages=73- and commonly known by such English names as Eleuthero or Siberian ginseng. In Traditional Chinese medicine, this is administered to increase energy, thus traditionally recognized to have attributes akin to true ginseng (Panax).{{Cite web |title=Traditional Chinese Medicine: What You Need To Know |url=https://www.nccih.nih.gov/health/traditional-chinese-medicine-what-you-need-to-know |url-status=live |archive-url=https://web.archive.org/web/20220820190049/https://www.nccih.nih.gov/health/traditional-chinese-medicine-what-you-need-to-know |archive-date=2022-08-20 |access-date=2022-08-20 |website=National Center for Complementary and Integrative Health |language=en}}{{Cite journal |last1=Hu |first1=Jing |last2=Zhang |first2=Junhua |last3=Zhao |first3=Wei |last4=Zhang |first4=Yongling |last5=Zhang |first5=Li |last6=Shang |first6=Hongcai |date=2011 |title=Cochrane systematic reviews of Chinese herbal medicines: an overview |journal=PLOS ONE |volume=6 |issue=12 |pages=e28696 |doi=10.1371/journal.pone.0028696 |issn=1932-6203 |pmc=3235143 |pmid=22174870 |bibcode=2011PLoSO...628696H |doi-access=free }} This is also reflected in its formerly used genus name Acanthopanax{{Harvnb|Dai Nihon Nōkai|1896}}p.9 Acanthopanax spinosum, Miq., {{Nihongo|Ukogi|ウコギ, 五加}} meaning "thorny ginseng". The word "Eleutherococcus," from Greek, means "free-berried."

The European Medicines Agency has concluded that there is insufficient evidence to demonstrate the efficacy of Eleutherococcus for any clinical condition.{{Cite web | title = Reflection Paper on the Adaptogenic Concept | publisher = European Medicines Agency | author = Committee on Herbal Medicinal Products | date = 2008 | quote = None of the studies would be sufficient to substantiate efficacy of Eleutherococcus preparations in a clearly defined clinical condition |url=https://www.ema.europa.eu/en/documents/scientific-guideline/reflection-paper-adaptogenic-concept_en.pdf }}

Naming

The Chinese materia medica in question ({{zh|s=五加皮|p=wǔjiāpí|gan=ng3 ga1 'pi2|w=wuchiapi|}}) may designate a number of species.{{cite book|last=Nanba|first=Tsuneo (難波恒雄)|title=漢方薬入門(Kanpōyaku nyūmon)|publisher=Hoikusha|year=1970}}, p.41 But the plant now given the common name wujia in China is specifically E. gracilistylus, and according to one source, the genuine crude drug must come from this species, and C. spinosum is only a substitute.

The Japanese name {{Nihongo|ukogi|ウコギ, 五加(木)}} borrows directly from the Chinese name, and refers somewhat broadly to several plants in the genus.(日本國語大辞典), 1976, [https://books.google.com/books?id=lbwYAQAAIAAJ snippet] quote:"果実は熟すと黑くなる,多く生垣に用い,若葉は食用とし、根の皮は五加皮(ごかひ)といい,滋養強壮剤として用いる。" A 10th century herbology text, Honzō wamyō ({{lang|zh|本草和名}}), introduced the Chinese wujia as an herb to be pronounced mu-ko-gi ({{lang|zh|牟古岐}}), refers specifically to E. sieboldianus (Japanese name: hime-ukogi).{{Harvnb|Yoshikawa|Ōhori|2002}}; retrieved from :ja:ウコギ属 version 2009年8月23日 (日) 13:10 R.Lucy (accessed April-2012) (See #Species list below).

The taxonomical nomenclature in the botanical science also has had a sinuous history, so that Acanthopanax had been used as the proper genus name in China till recent years, while the West adopted Eleutherococcus as the official name.

Several species are also grown as ornamental garden shrubs. In Japan, they have been planted as hedges. Particularly in Yamagata Prefecture, a daimyō named Uesugi Yōzan{{Harvnb|Ogata|2010}}(website) encouraged the planting of the ukogi as fencing around the homes of samurai retainers (E. sieboldianus was planted in the region), and the bitter young buds, leaves and stems have traditionally been picked and eaten as vegetable in the area. However, since the plant is deciduous, it requires sweeping in the fall (high maintenance), and the bare hedges fail to protect the homeowner's privacy.

Fossil record

The four earliest fossil species of Eleutherococcus are from the Maastrichtian (about 70 Ma) floras of Eisleben and Walbeck, Germany, the synonym Acanthopanax is used for these species †A. friedrichii, †A. gigantocarpus, †A. mansfeldensis and †A. obliquocostatus.The Timetree of Life edited by S. Blair Hedges and Sudhir Kumar, OUP Oxford, 23. apr. 2009 - 576 pages,

{{ISBN|0191560154}}, 9780191560156

Species

File:Eleutherococcus trifoliatus 1.jpg

=Formerly under Acanthopanax=

References

{{Reflist|30em}}