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Quercus asymmetrica Hickel & A. Camus

Quercus asymmetrica

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Quercus asymmetrica[3] is an oak tree species in the beech family Fagaceae.[4][5] It is found in China (specifically, Guangxi Province and Hainan Province, where it is called 托盘青冈 tuo pan qing gang) and northern Vietnam.[6] It is placed in subgenus Cerris, section Cyclobalanopsis.[7]

Description

Quercus asymmetrica is a tree growing up to 15 m tall, with branchlets that are conspicuously angular when young; by second year, they become glabrous with occasional lenticels. The leaves are leathery, elliptic to ovate-lanceolate, 50-120 × 25–60 mm and have 9-11 secondary veins on each side of mid-vein. The acorns are oblate, 25–28 mm in diameter, greyish-brown, with a scar 15–20 mm in diameter, impressed or flat. The cupules are 20–30 mm in diameter. A persistent stylopodium is approximately 40 mm in diameter. In China, flowering is in May–June and acorns may be found in October–November of the following year.[8]

References

  1. ^ Carrero, C.; Strijk, J.S. (2020). "Quercus asymmetrica". IUCN Red List of Threatened Species. 2020: e.T78805106A173042077. doi:10.2305/IUCN.UK.2020-3.RLTS.T78805106A173042077.en. Retrieved 12 November 2022.
  2. ^ The Plant List (accessed 11/7/2017)
  3. ^ Hickel & A.Camus, 1923 In: Bull. Mus. Natl. Hist. Nat. 29: 601
  4. ^ Roskov Y.; Kunze T.; Orrell T.; Abucay L.; Paglinawan L.; Culham A.; Bailly N.; Kirk P.; Bourgoin T.; Baillargeon G.; Decock W.; De Wever A. (2014). Didžiulis V. (ed.). "Species 2000 & ITIS Catalogue of Life: 2014 Annual Checklist". Species 2000: Reading, UK. Retrieved 26 May 2014.
  5. ^ WCSP: World Checklist of Selected Plant Families
  6. ^ Min Deng; Zhe-Kun Zhou & Allen Coombes (2010). "Lectotypification and new synonymy in Quercus subg. Cyclobalanopsis (Fagaceae)" (PDF). Novon. 20 (4): 400–405. doi:10.3417/2004208. S2CID 55587214.
  7. ^ Denk, Thomas; Grimm, Guido W.; Manos, Paul S.; Deng, Min & Hipp, Andrew L. (2017). "Appendix 2.1: An updated infrageneric classification of the oaks" (xls). figshare. Retrieved 2023-02-24.
  8. ^ Flora of China: Cyclobalanopsis patelliformis (accessed 11/7/2017)

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Quercus asymmetrica: Brief Summary

provided by wikipedia EN

Quercus asymmetrica is an oak tree species in the beech family Fagaceae. It is found in China (specifically, Guangxi Province and Hainan Province, where it is called 托盘青冈 tuo pan qing gang) and northern Vietnam. It is placed in subgenus Cerris, section Cyclobalanopsis.

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cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
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