Quercus hypargyrea

Quercus hypargyrea is an Asian species of tree in the beech family Fagaceae. It is native to south-central and southeast China,^[1] in particular the provinces of Anhui, Fujian, Guangxi, Hubei, Hunan, Jiangxi, Shaanxi, and Sichuan.^[2] It has incorrectly been known as Quercus multinervis, which is properly the name of a fossil species.^[1] It is placed in subgenus Cerris, section Cyclobalanopsis.^[3]

Quercus hypargyrea
Scientific classification
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. hypargyrea
Binomial name
Quercus hypargyrea (Seemen ex Diels) C.C.Huang & Y.T.Chang
Synonyms[1]
Cyclobalanopsis hypargyrea (Seemen ex Diels) Y.C.Hsu & H.Wei Jen Cyclobalanopsis multinervis W.C.Cheng & T.Hong Quercus glauca var. hypargyrea Seemen ex Diels Quercus multinervis (W.C.Cheng & T.Hong) Govaerts, nom. illeg., non Lesq. (1859) Quercus stenophylla var. hypargyrea (Seemen ex Diels) A.Camus

Quercus hypargyrea is a tree up to 12 m tall. Leaves can be as much as 15.5 cm long.^[2]

Taxonomy

Quercus hypargyrea was first described as Quercus glauca var. hypargyrea in 1900 by Ludwig Diels, who attributed the name to Karl Otto von Seemen. It was raised to a full species in 1992.^[4] Independently, the species was described as Cyclobalanopsis multinervis in 1963. In 1998, this was transferred to Quercus as "Quercus multinervis". However, this name had already been published in 1859 for a fossil species, so is illegitimate.^[5][1]

It is placed in subgenus Cerris, section Cyclobalanopsis.^[6]