Quercus asymmetrica
Species of oak tree
From Wikipedia, the free encyclopedia
Quercus asymmetrica[3] is an oak tree species in the beech family Fagaceae.[4][5] It is found in China (specifically, Guangxi Province and Hainan Province, where it is called 托盘青冈 tuo pan qing gang) and northern Vietnam.[6] It is placed in subgenus Cerris, section Cyclobalanopsis.[7]
| Quercus asymmetrica | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Fagaceae |
| Genus: | Quercus |
| Subgenus: | Quercus subg. Cerris |
| Section: | Quercus sect. Cyclobalanopsis |
| Species: | Q. asymmetrica |
| Binomial name | |
| Quercus asymmetrica Hickel & A.Camus | |
| Synonyms[2] | |
|
Cyclobalanopsis patelliformis (Chun) Y.C.Hsu & H.Wei Jen | |
Description
Quercus asymmetrica is a tree growing up to 15 m tall, with branchlets that are conspicuously angular when young; by second year, they become glabrous with occasional lenticels. The leaves are leathery, elliptic to ovate-lanceolate, 50-120 × 25–60 mm and have 9-11 secondary veins on each side of mid-vein. The acorns are oblate, 25–28 mm in diameter, greyish-brown, with a scar 15–20 mm in diameter, impressed or flat. The cupules are 20–30 mm in diameter. A persistent stylopodium is approximately 40 mm in diameter. In China, flowering is in May–June and acorns may be found in October–November of the following year.[8]