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Quercus chrysotricha | |
Author | A. Camus 1948 Chênes Atlas 3: 50 1948 |
Synonyms | arbutifolia Warburg 1937, not Hick. & A.Camus 1936 |
Local names | |
Range | Borneo (Mt Dulit,
Norh of Sarawak); to 1300 m; |
Growth habit | more than 15
m tall; |
Leaves | 2-5 cm X 1-3;
leathery but thin; oboval, elliptic or oval; apex obtuse, round or emarginate
; base narrowed, obtuse or acute, often asymmetrical; margin entire; young
leaves with golden pubescence; adult glabrescent both sides except beneath
at base of midrib; 4-6 pairs of secondary veins flat above, raised beneath,
parallel forming an angle of 60-70° with the midrib; petiole thick,
glabrous, flat above, to 0.3 cm long; |
Flowers | male catkins
|
Fruits | acorn 1.5-2 cm long, ovate conical, pubescent; cup conical with 6-7 glabrous rings; |
Bark, twigs and |
smooth
or furrowed bark, covered with thin plates; young twig covered with a
dense, golden pubescence made of simple hairs, glabrescent ; bud subglobose,
3 mm long; stipules linear, densely rufous tomentose, 8-10 mm long; |
Hardiness zone, habitat | not hardy; |
Miscellaneous | -- Sub-genus Cerris, Section
Cyclobalanopsis; -- Section Semiserrata, sub-section Chrysotrichae (Menitsky). -- Closely related to Q.litseoides and to Q.merrillii; -- Threatened (IUCN Red List Category : EN) |
Subspecies and varieties |
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Pictures | ![]() |