| Quercus semiserrata | |
| Author | Roxb. 1832 Fl. Ind. ed. 1832 3: 641 |
| Synonyms | annulata Hook.f. ex A.DC 1864 nom. illeg.
not Smith in Rees 1819 Cyclobalanopsis semiserrata (Roxb.) Oersted 1867 Cyclobalanopsis semiserratoides Y.C. Hsu & H.W. Jen 1976 Acta Phytotax. Sin. 14(2): 84 semiserratoides (Hsu & H.W. Jen)C.C. Huang & Y.T.Chang 1992 |
| Local names | wu
chi qing gang |
| Range | China (SE Tibet,
Yunnan); NE India; Myanmar; Thailand; Bangladesh; 400-1500 m; |
| Growth habit | 10 m tall and
more; trunk staight, stout; |
| Leaves | 13-25 x 3-7 cm; evergreen; oblanceolate, oblong-lanceolate or elliptic-lanceolate; thin, papery; apex acuminate to acute; base cuneate; margin entire, apicaly minutely serrate; hairless, shiny above; hairless, glaucous, waxy beneath; young leaves have a yellowish tomentum ; 9-12 vein pairs straight, parallel, prominent beneath only; petiole glabrous 1.4-2 cm long; |
| Flowers | male catkins
drooping, fulvous tomentose; pistillate inflorescences 2-6 cm long, bearing
2 or 3 flowers with 4-6 styles 3.5 cm long, bifid and divaricate;
|
| Fruits | acorn 3.5 cm
long, 1.5 cm across, oblong-ellipsoid; apex depressed, hairy and mucronate;
basal scar 1.5 cm wide, convex; stylopodium persistent; enclosed 1/2 to
1/3 by cup; cup thin, brown tomentose, sessile, with 6-9 concentric rings
of scales, the lower with margin denticulate; maturing in 1 year; |
|
Bark, twigs and |
bark dark grey, rough, hard, 1.5 cm thick; twigs tomentose at first, becoming glabrous, with numerous white lenticels; |
| Hardiness zone, habitat | not quite hardy (no success in G.B., but thrives well in Ustaritz, Basque Country, France); inhabits moist subtropical forests |
| Miscellaneous | --
A. Camus : n° 4; -- Sub-genus Cerris, Section Cyclobalanopsis; -- Section Semiserrata, sub-section Semiserratae (Menitsky). -- Threatened (IUCN Red List Category : CR) -- Q. annulata Sm. in Rees 1819 = see Q. glauca |
| Subspecies and varieties |
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var. mannii Hook.f. 1888 Fl. Brit. India 5: 604 |
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