Quercus dentata
| Daimyo oak | |
|---|---|
| File:Quercus dentata - Dawes Arboretum - DSC02842.JPG | |
| Scientific classification Edit this classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Fagaceae |
| Genus: | Quercus |
| Subgenus: | Quercus subg. Quercus |
| Section: | Quercus sect. Quercus |
| Species: | Q. dentata
|
| Binomial name | |
| Quercus dentata | |
| Synonyms[1] | |
|
List
| |
Quercus dentata, also called Japanese emperor oak, daimyo oak, or Korean oak[2] (Japanese: 柏, kashiwa; traditional Chinese: 柞櫟; simplified Chinese: 柞栎; pinyin: zuòlì; Korean: 떡갈나무, tteokgalnamu), is a species of oak native to East Asia (Japan, Korea and China). The name of the tree is often translated as "sweet oak" in English to distinguish it from Western varieties.[3] It is placed in section Quercus.[4]
Description
[edit | edit source]Quercus dentata is a deciduous tree growing up to 20–25 metres (66–82 feet) tall, with a trunk up to 1 m (3 ft 3 in) in diameter. Its foliage is remarkable for its size, among the largest of all oaks, consisting of a short hairy petiole, 1–1.5 centimetres (3⁄8–5⁄8 inch) long, and a blade 10–40 cm (4–15+1⁄2 in) long and 15–30 cm (6–12 in) broad, with a shallowly lobed margin; the form is reminiscent of an enormous pedunculate oak leaf. The leaves are often retained dead on the tree into winter. Both sides of the leaf are initially downy with the upper surface becoming smooth.[3]
The flowers are produced in May; the male flowers are pendulous catkins. The female flowers are sessile, growing near the tips of new shoots, producing acorns 1.2–2.3 cm long and 1.2–1.5 cm broad, in broad, bushy-scaled cups; the acorns mature in September to October.[3]
Ecology
[edit | edit source]Quercus dentata (Qd) (Japanese Emporer Oak) cannot tolerate the exteme cold of northern Hokkaido, but Quercus crispula (Qc) can. In more southerly parts of Hokkaido, Q. dentata lives in coastal areas while Q. crispula tends to live more inland. In the more northern parts of the island, these two species have experienced introgression and they are interfertile, producing shoots that grow and can reproduce; resulting in a coastal Qc ecotype wih Qd-like traits. The coastal Qc are intermediary between the two parent species in genotypes and phenotypes.[5]
Cultivation outside East Asia
[edit | edit source]Quercus dentata was introduced to the British Isles in 1830, where it is occasionally grown in botanical gardens. It is usually smaller in cultivation than in the wild, growing to a small angular tree or large irregular shrub. Notable specimens include one at Osterley Park, 14 m (46 ft) tall and 1.5 m girth, and the largest, 18 m (59 ft) tall, at Avondale Forest Park, County Wicklow, Ireland.[6][7][8]
Culinary uses
[edit | edit source]In Korean cuisine, its acorns (in Hangul: 도토리, dotori) have been used since the Three Kingdoms. A notable food is dotorimuk.
In Japanese cuisine, its leaves are used as a wrapping for kashiwa mochi.[9]
References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Note that this website has been superseded by World Flora Online
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Mitchell, A. F. (1974). "Field Guide to Trees in Britain and Europe." Collins.
- ^ Phillips, R. (1978). "Trees in Britain, Europe and North America." Ward Lock.
- ^ Lancaster, R. (1981). 'Hillier's Manual of Trees & Shrubs," 5th ed. Hillier and Sons.
- ^ Quercus dentata, with photos (pdf file; in Japanese)[permanent dead link]
External links
[edit | edit source]- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- line drawing, Flora of China Illustrations vol. 4, fig. 360, 1
Lua error in Module:Taxonbar at line 165: attempt to index field 'wikibase' (a nil value). Lua error in Module:Authority_control at line 153: attempt to index field 'wikibase' (a nil value).