Quercus helferiana
Species of tree
From Wikipedia, the free encyclopedia
Quercus helferiana is a species of tree in the beech family Fagaceae. It is native to Vietnam, Thailand, Laos, Myanmar, India (northeast), and southern China (Yunnan, Guangdong, Guangxi, Guizhou).[3] It is placed in subgenus Cerris, section Cyclobalanopsis.[4]
| Quercus helferiana | |
|---|---|
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. helferiana |
| Binomial name | |
| Quercus helferiana A.DC. 1864 | |
| Synonyms[2] | |
| |
Description
Quercus helferiana is a tree up to 20 m. tall, with a trunk up to 0.3 m in diameter. Leaves oblong-elliptic, to elliptic-lanceolate, 120-150 (up to 220) × 40-80 (up to 95) mm, with wavy edges but no teeth or lobes.[3] The acorn is oblate, 10-16 × 15–22 mm, grey, with a depressed apex and often covered with shaggy hairs; the scar is 12–14 mm in diameter, flat to concave at maturity. Flowering is in March–April, acorns found from October–November.
