Quercus Subgenus Cyclobalanopsis
The ring-cupped oaks (synonym genus Cyclobalanopsis). Eastern and southeastern Asia. They are distinct from subgenus Quercus in that they have acorns with distinctive cups bearing concrescent rings of scales; they commonly also have densely clustered acorns, though this does not apply to all of the species. About 150 species.
Selected species
Quercus acuta — Japanese evergreen oak. # Japan, Korea
Quercus albicaulis — # China
Quercus annulata Sm. — # The Himalayas to Vietnam
Quercus arbutifolia Hickel & A.Camus — # Vietnam (endemic)
Quercus argentata — # Malaysia, Indonesia
Quercus argyrotricha — # Guizhou (China)
Quercus asymmetrica Hickel & A.Camus — # China, northern Vietnam
Quercus augustinii — # China, Vietnam
Quercus auricoma A.Camus — # China, Vietnam (synonym Quercus hui)
Quercus austrocochinchinensis — # China, Thailand, Vietnam
Quercus austroglauca — # China.
Quercus bella — # China
Quercus blakei — # China, Laos, Vietnam
Quercus braianensis A.Camus — # Vietnam (endemic)
Quercus championii — # China, Taiwan
Quercus chapensis — # China, Vietnam
Quercus chevalieri — # China, Vietnam
Quercus chingsiensis — # China
Quercus chrysocalyx Hickel & A.Camus — # Vietnam
Quercus chungii — # China
Quercus daimingshanensis — # China
Quercus dankiaensis A.Camus — # Vietnam (endemic)
Quercus delavayi — # China
Quercus delicatula — # China
Quercus dinghuensis — # China
Quercus disciformis — # China
Quercus edithiae — # China, Vietnam
Quercus elevaticostata — # Fujian (China)
Quercus fleuryi — # China, Laos, Vietnam
Quercus gambleana — # China, India
Quercus gemelliflora — # Malaysia, Indonesia, Vietnam
Quercus gilva — # Japan, Taiwan, China
Quercus glauca — ring-cupped oak. # From Afghanistan to Japan and Vietnam
Quercus gomeziana A.Camus — # Vietnam
Quercus helferiana — # China, India, Burma/Myanmar, Thailand, Laos, Vietnam
Quercus hondae — # Kyūshū (Japan)
Quercus hypophaea — # Taiwan
Quercus jenseniana — # China
Quercus jinpinensis — # China
Quercus kerrii — Kerr's oak. # Vietnam, Thailand, possibly China
Quercus kiukiangensis — # China
Quercus kouangsiensis — # China
Quercus lamellosa — # Himalayas
Quercus lanata Sm. — # Vietnam
Quercus langbianensis — # Cambodia, China, Vietnam. (synonym: Quercus camusiae)
Quercus lineata — # Malaysia, Indonesia
Quercus litoralis — # China
Quercus litseoides — # China
Quercus lobbii — # China, India
Quercus longinux — # Taiwan
Quercus lowii — # Borneo
Quercus lungmaiensis — # Yunnan (China)
Quercus macrocalyx Hickel & A.Camus — # Vietnam
Quercus merrillii — # Sabah and Sarawak (Malaysia), Palawan (Philippines)
Quercus mespilifolia Wall. ex A.DC — # Vietnam
Quercus morii — # Taiwan
Quercus motuoensis — # China
Quercus multinervis — # China
Quercus myrsinifolia — bamboo-leaf oak. # China, Japan, Korea, Laos, Thailand, Vietnam (synonym: Quercus neglecta)
Quercus ningangensis — # China
Quercus oblongata D.Don — # Vietnam
Quercus obovatifolia — # China
Quercus oxyodon — # Assam, Myanmar, China, Bhutan, Nepal, northern Vietnam (synonym Q. songtavanensis)
Quercus pachyloma — # China, Taiwan
Quercus patelliformis — # China
Quercus pentacycla — # China
Quercus petelotii A.Camus — # Vietnam (endemic)
Quercus phanera — # China
Quercus poilanei — # China, Thailand, Vietnam
Quercus quangtriensis Hickel & A.Camus — # Vietnam
Quercus rex — # China, India, Laos, Myanmar, Vietnam
Quercus rupestris Hickel & A.Camus — # Vietnam (endemic)
Quercus salicina — # Japan, South Korea
Quercus saravanensis — # China, Laos, Vietnam
Quercus schottkyana — # China
Quercus semiserrata — # China, Bangladesh, India, Myanmar, Thailand
Quercus sessilifolia — # Japan, Taiwan, China
Quercus setulosa Hickel & A.Camus — # Laos, Vietnam
Quercus sichourensis — # Yunnan (China)
Quercus stenophylloides — # Taiwan
Quercus stewardiana — # China
Quercus subhinoidea — # China
Quercus subsericea — # Malaysia, Indonesia, Philippines (Palawan)
Quercus sumatrana — # Indonesia
Quercus thorelii — # China, Laos, Vietnam
Quercus tomentosinervis — # China
Quercus treubiana — # Sumatra, Borneo
Quercus xanthotricha — # China, Laos, Vietnam
Quercus yingjiangensis — # China
Quercus yonganensis — # China