Quercus rex
| Quercus rex | |
|---|---|
| |
Scientific classification 
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| 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. rex
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| Binomial name | |
| Quercus rex | |
| Synonyms[2] | |
| |
Quercus rex is an Asian species of tree in the family Fagaceae. It has been found in the seasonal tropical forests of northern Indochina (Laos, Myanmar, Vietnam), northeastern India, and also in the province of Yunnan in southwestern China.[3] It is placed in subgenus Cerris, section Cyclobalanopsis.[4]
Quercus rex is a large tree up to 30 m. tall. Twigs are pale brown with a woolly coating of hairs. Leaves can be as much as 270 mm long.[3][5] The acorn is oblate, 25-35 × 35–50 mm, pale greyish-orange and tomentose when young; the apex is rounded to impressed; the scar is 20–25 mm in diameter and depressed. In China, flowering is in April–May, acorns are found from October–November.[3]
References
[edit]- ^ Carrero, C. (2019). "Quercus rex". IUCN Red List of Threatened Species. 2019: e.T32396A2817544. Retrieved 24 January 2023.
- ^ The Plant List, Quercus rex Hemsl.
- ^ a b c Flora of China, Cyclobalanopsis rex (Hemsley) Schottky, 1912. 大果青冈 da guo qing gang
- ^ 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.
- ^ Hemsley, William Botting 1900. Hooker's Icones Plantarum 27(3): plate 2663 and subsequent unnumbered text page 2- page fold-out line drawing, description in Latin, commentary and figure captions in English
External links
[edit]- line drawing, Flora of China Illustrations vol. 4, fig. 381, drawings 1-3 at left
- Photo of herbarium specimen at Missouri Botanical Garden, collected in Yunnan, showing leaves
- Second photo of herbarium specimen at Missouri Botanical Garden, collected in Yunnan, showing acorns
Data related to Quercus rex at Wikispecies
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