Quercus rex

Quercus rex
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fagales
Family:	Fagaceae
Genus:	Quercus
Subgenus:	Quercus subg. Cyclobalanopsis
Species:	Q. rex
Binomial name
	Quercus rex; Hemsl.
Synonyms
	Cyclobalanopsis fructiseptata (A.Camus) Hjelmq.; Cyclobalanopsis rex (Hemsl.) Schottky; Quercus dussaudii Hickel & A.Camus; Quercus fructiseptata A.Camus; Quercus subumbilicata A.Camus;

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[]

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[1] The Plant List, Quercus rex Hemsl.

[jenifer-2] Flora of China, Cyclobalanopsis rex (Hemsley) Schottky, 1912. 大果青冈 da guo qing gang

[3] 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

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