| Quercus rupestris | |
| Author | Hickel & A.Camus 1923 Bull. Mus. Natl. Hist. Nat. 29: 599 |
| Synonyms | |
| Local names | |
| Range | Vietnam; 600-900
m; |
| Growth habit | 5-6 m tall;
|
| Leaves | 4-8 x 1.5-3
cm; leathery; sub-elliptical, oblong-lanceolate or oval-oblong; both ends
attenuate; base cuneate; apex obtuse; margin entire, sometimes undulate-dentate
near apex; shiny, glabrous above; dull and glabrous beneath; 5-7 vein
pairs slightly raised beneath, at an angle of 40-45° with the midrib;
petiole 1 cm long, glabrous; |
| Flowers | 3 very short styles, basally connate; very small stigmas; |
| Fruits | acorn 1.5-1.8
cm long, 1.3-1.5 cm in diameter, mucronate, hairy, basal scar flat or
slightly depressed; often paired on a 0.5-1 cm long peduncle; covered
at base only by cup; cup stalkless 0.8-1.3 cm in diameter, with 6 entire
or slightly undulate-denticulate rings; annual; |
|
Bark, twigs and |
young shoot hairless, rough, with lenticels; bud rounded, 2 mm in diameter, with oval, slightly hairy scales; |
| Hardiness zone, habitat | not hardy; tropical forests; prefers rocky soils; |
| Miscellaneous | -- A. Camus : tome 1, p. 299,
n° 53; -- Sub-genus Cerris, Section Cyclobalanopsis; -- Section Glauca, sub-section Glaucae (Menitsky); -- Threatened (IUCN Red List Category : EN). |
| Subspecies and varieties |
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| Pictures |
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