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Acer pentaphyllum - Quarryhill Botanical Garden - DSC03224

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids II
Ordo: Sapindales

Familia: Sapindaceae
Subfamilia: Hippocastanoideae
Tribus: Acereae
Genus: Acer
Species: Acer pentaphyllum
Name

Acer pentaphyllum Diels, Notizbl. Bot. Gart. Berlin-Dahlem 11: 212 (1931).
Distribution
Native distribution areas:

Asia-Temperate
China
China South-Central (Sichuan).

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Additional references

Murray, A.E., 1970. A monograph of the Aceraceae. Unpublished Ph.D. dissertation, The Pennsylvania State University. Reference page.
Govaerts, R.H.A. 1995. World Checklist of Seed Plants 1(1, 2). 483, 529 pp. MIM, Deurne. ISBN 90-341-0852-X (issue 1) ISBN 90-341-0853-8 (issue 2). Reference page.
Hsu, T.Z., Chen, Y.S., Jong, P.C.de, Oterdoom, H.J. & Chang, C.S. 2008. Acer. Pp. 537 in Wu, Zh.Y. , Raven, P.H. & Hong, D.Y. (eds.), Flora of China. Volume 11: Oxalidaceae through Aceraceae. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, ISBN 978-1-930723-73-3. efloras PDF Reference page.

Links

Hassler, M. 2020. Acer pentaphyllum. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2020. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2020 September 18. Reference page.
Govaerts, R. et al. 2020. Acer pentaphyllum in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 September 18. Reference page.
International Plant Names Index. 2020. Acer pentaphyllum. Published online. Accessed: 18 September 2020.

Vernacular names
English: Five-lobed Maple
français: Érable à cinq folioles

Acer pentaphyllum (五小叶槭 wu xiao ye qi) is a very rare, endangered maple species endemic to southwestern Sichuan in China, at altitudes of 2300–2900 meters.[2]

Acer pentaphyllum is a deciduous tree that grows to 10 meters in height. Leaves are palmately compound hairless, usually with 5 lobes but sometimes with 4 or 7. Leaflet are 5-8 × 1.5–2 cm, narrowly lanceolate or lanceolate.[2][3]
Conservation

Acer pentaphyllum is listed as "critically endangered" on the Red List of Threatened Species by IUCN with a recorded population of less than 500 plants left in the wild. Experts believe that survival is threatened by a combination of factors including habitat loss, animal grazing, the harvest of woody fuel by local farmers, and fragmentation. Several concerned individuals and organizations have been working to ensure this species is conserved and saved from extinction. Most of these works done by experts to conserve this species include the establishment of ex-situ conservation sites and Environmental Public Interest Litigation Cases on behalf of this species. The UBC Botanic Garden established an Ex-situ conservation site at the UBC Botanic Garden for the conservation of this critically endangered Acer Pentaphyllum species. Also in China, an organization known as the China Biodiversity Conservation and Green Development Foundation (CBCGDF) is one of the organizations in China working to conserve this plant species example includes the establishment of ex-situ conservation sites through (Community Conservation Area(CCAfa)) at 3 different regions in China such as Tianshui, Lanzhou and Xing'an Meng. CBCGDF filed a civil public interest environmental lawsuit against a hydropower company for potentially threatening the survival of the plant by building a new power station in southwest China. The Garze intermediate court accepted the case in Dec. 2015.[4]
References

Barstow, M.; Wang, K.; Crowley, D. (2019). "Acer pentaphyllum". IUCN Red List of Threatened Species. 2019: e.T193850A2285958. doi:10.2305/IUCN.UK.2019-1.RLTS.T193850A2285958.en. Retrieved 20 November 2021.
Flora of China Acer pentaphyllum Diels, Notizbl. 1931. 五小叶枫 wu xiao ye feng
Diels, Friedrich Ludwig Emil 1931. Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem 11(103): 212
"Chinese court rules hydropower company to protect rare plant - Xinhua | English.news.cn". www.xinhuanet.com. Retrieved 2021-06-24.

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