Quercus rex
Appearance
Quercus rex | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fagales |
Family: | Fagaceae |
Genus: | Quercus |
Section: | Quercus sect. Cyclobalanopsis |
Species: | Q. rex
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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