Quercus macrocalyx

Quercus macrocalyx^[2] is a tree species in the beech family Fagaceae There are no known subspecies.^[3][4] It is placed in subgenus Cerris, section Cyclobalanopsis.^[5]

Quercus macrocalyx
Conservation status
Least Concern  (IUCN 3.1)[1]
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. macrocalyx
Binomial name
Quercus macrocalyx Hickel & A.Camus
Synonyms
Quercus tsoi Chun ex Menitsky Quercus megalocarpa A.Camus Quercus fleuryi Hickel & A.Camus Cyclobalanopsis nengpulaensis H.Li & Y.C.Hsu Cyclobalanopsis macrocalyx (Hickel & A.Camus) M.Deng & Z.K.Zhou Cyclobalanopsis fleuryi (Hickel & A.Camus) W.T.Chun Cyclobalanopsis austroyunnanensis Hu

This oak tree grows up to 20 m tall and has been recorded from Vietnam, where it may be called sồi đấu to.^[6]