| Quercus dilacerata | |
| Author |
Hickel & A. Camus 1929 Fl. Indo-Chine 5: 960 |
| Synonyms | |
| Local names | |
| Range | Vietnam; 1800 m; |
| Growth habit | 12-15 m; trunc to 1.20 m girth; |
| Leaves |
10-13 cm x 3-4; oblong-lanceolate or oblanceolate; base long attenuate; apex slightly acuminate; both side glabrous or nearly so; adaxially lustrous; beneath dull; margin not undulate, serrate in the apical 1/3; 12-14 pairs of secondary veins, slightly impressed above, prominent abaxially, at an angle of 30-34° from midrib; tertiary veins visible beneath, most of them at a right angle with lateral veins; petiole 1-1.4 cm long, hairless; |
| Flowers | 3 styles, short and glabrous; thick stigmas; |
| Fruits |
acorn subglobose, 2 to 3 on a 1-3 cm long peduncle, hairless except near mucro, brown; cupule thick, covering 2/3 of the nut, 1.5-2 cm in diameter, almost half-round, with 6-8 concentric rings of scales strongly indented at margin; basal scar convex; cotyledons free; maturing in 2 years; |
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Bark, twigs and |
twig golden tomentose at first, becoming hairless; bu ovoid, densely whitish tomentose; |
| Hardiness zone, habitat | deep clay soil, in wet climate; |
| Miscellaneous |
-- A. Camus : tome 1, p. 214, n° 16 -- This taxon, often considered as synonym of Q. langbianensis, is today included by Binh & Ngoc 2018 in the "Q. langbianensis Complex"
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| Subspecies and varieties |
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