Quercus kerrii

Quercus kerrii is an uncommon Asian species of tree in the family Fagaceae. It is native to Thailand and Vietnam. There are also populations in southern China that according to some authors belong to Q. kerrii but considered by others to belong to a different species, Q. helferiana.[3] Quercus kerrii is placed in subgenus Cerris, section Cyclobalanopsis.[4]

Quercus kerrii
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Cerris
Section: Quercus sect. Cyclobalanopsis
Species:
Q. kerrii
Binomial name
Quercus kerrii
Craib 1911
Synonyms[2]
  • Cyclobalanopsis kerrii (Craib) Hu
  • Quercus dispar Chun & Tsiang 1947 not Raf. 1838

Quercus kerrii is a tree up to 20 m. tall with hairy twigs. Leaves can be as much as 240 mm long.[3][5] The acorn is oblate, 7-12 × 20–28 mm, apex depressed to flat, with a scar that is 10–20 mm in diameter and slightly convex. In China, flowering is from March–May, acorns can be found from October–November.[3]

This species and Quercus helferiana are closely related: the relationship between them and their distribution needs further work and it is possible that Q. kerrii does not occur in China.[3]

References
  1. Carrero, C. (2019). "Quercus kerrii". IUCN Red List of Threatened Species. 2019: e.T78967224A78967348. doi:10.2305/IUCN.UK.2019-1.RLTS.T78967224A78967348.en. Retrieved 23 December 2022.
  2. The Plant List, Quercus kerrii Craib
  3. Flora of China, Quercus kerrii Craib
  4. 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.
  5. Craib, William Grant 1911. Bulletin of Miscellaneous Information Kew 1911(10): 471–472 description in Latin, commentary in English


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