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 |
| Section: | Quercus sect. Cyclobalanopsis |
| Species: | Q. rex
|
| Binomial name | |
| Quercus rex | |
| Synonyms[1] | |
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Quercus rex is an Asian species of tree in the family Fagaceae and the "ring-cupped oak" sub-genus. 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.[2]
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.[2][3] 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.[2]
References
- ^ 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
- ^ 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
- 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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