| Quercus poilanei | |
| Author | Hickel & A.Camus 1921 Ann. Sci. Nat., Bot. X, 3: 384 |
| Synonyms | Cyclobalanopsis poilanei (Hickel
& A.Camus) Hjelmquist 1968 flavescens Hickel & A.Camus 1923 (A.Camus = n° 32) |
| Local names | huang
bei qing gang ; |
| Range | Vietnam; China (Guangxi); N Thailand; below 1300 m ; |
| Growth habit | 8-16 m tall; trunk to 0,6 m in diameter; |
| Leaves | 4-8 x 3.6 cm; oval-lanceolate; apex acuminate to shortly caudate; base broadly cuneate; margin entire or sometimes with few small teeth towards apex; young leaves tawny stellate tomentose; dark green above, glabrescent; yellow stellate tomentose beneath; 7-12 vein pairs, impressed upside, prominent below; petiole 1-1.5 cm long, tomentose at first, glabrescent; |
| Flowers | April; pistillate inflorescences 5 cm long, bearing 3-10 flowers; female flowers with 3 bilobed styles; |
| Fruits | acorn 1-1.5 cm in diameter, globose; apex mucronate, slightly depressed; enclosed 1/4 to 1/3 by cup; cup 0.8 cm long, 1.6 cm in diameter, golden tomentose inside and outside, 1.8 mm thick, with 5-7 concentric rings marginally denticulate or entire; scar flat, 5-7 mm wide; maturing in 2 years; |
|
Bark, twigs and |
bark grey, rough; twig light orangish brown tomentose, then glabrescent; |
| Hardiness zone, habitat | not hardy; subtropical broad leaved evergreen forests; |
| Miscellaneous | -- A. Camus : n° 31; -- Sub-genus Cerris, Section Cyclobalanopsis; -- Section Lepidotricha (Menitsky); |
| Subspecies and varieties |
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| Pictures |
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