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Quercus albicaulis | |
Author | Chun & W.C.Ko 1958 Acta Phytotax. Sin. 7: 33 1958. |
Synonyms | Cyclobalanopsis albicaulis (Chun & Ko)Y.C.Hsu & H.Wei Jen 1993 |
Local names | bai zhi qing gang; |
Range | China (Hainan); 200-600 m ; |
Growth habit | reaches 30 m high; |
Leaves | 10-15 cm long, 3-6 cm wide; oblong-elliptic to oval or lanceolate, a little leathery, bloomy, base rounded or weakly cuneate, apex most often acuminate; margin entire or remotely toothed; midrib shallowly impressed above; 6-8 pairs of lateral veins; petiole glabrous 2-2.5 cm long; |
Flowers | pistillate in October, on 2-3 cm long inflorescences; |
Fruits | acorn oblong 4 cm long, 2-3 cm wide; glabrous; long-stalked cupule 2-3 cm in diameter, with 6-8 pale brown pubescent concentric rings, enclosing 1/3 or 1/2 of nut; scar round ; stylopodium persistent; maturing in 1 year (fruit in November-December of the year after anthesis that occurs in October); |
Bark, twigs and |
twigs first whitish, glabrous, cylindrical, then minutely furrowed, with lenticels; |
Hardiness zone, habitat | |
Miscellaneous | -- Sub-genus Cerris, section
Cyclobalanopsis; -- Taxinomic position uncertain... -- For Menitsky (1974) it is a synonym of Q.jenseniana -- Threatened (IUCN Red List Category : CR). |
Subspecies and varieties |
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Pictures | drawing |