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| Quercus sichourensis | |
| Author | (Y.C.Hsu)C.C.Huang & Y.T.Chang 1992 Guihaia 12: 304 |
| Synonyms | Cyclobalanopsis sichourensis Hsu 1976 |
| Local names | xi
chou qing gang ; |
| Range | China (SE Yunnan ); 800-1500 m ; |
| Growth habit | reaches
20 m tall; |
| Leaves | 12-21 x 5-9 cm; oblong to oval-elliptic; leathery, thick; apex acute; base rounded or broadly cuneate; margin slightly toothed near apex; shiny green above; whitish, pilose beneath, above all at vein axils; midrib impressed above; 15-18 vein pairs; tertiary veins evident beneath; petiole 2.5-3.5 cm long, tomentose at first; |
| Flowers | |
| Fruits | acorn
flattened, 2 cm long, 3-4 cm wide; pale orangish tomentose inside and
outside; mucronate, depressed at apex; almost all enclosed by cup; cup
thin (1.5 mm), tomentose, with 9-10 concentric rings with margin dentate;
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|
Bark, twigs and |
twigs
thick, slightly sulcate, with round, greyish brown lenticels; |
| Hardiness zone, habitat | not
hardy; broad-leaved evergreen mountain forests; |
| Miscellaneous | --
Sub-genus Cerris, Section Cyclobalanopsis; -- Threatened (IUCN Red List Category : CR) |
| Subspecies and varieties |
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| Pictures | drawing of sichourensis |