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Quercus infectoria | |
Author | G. Olivier 1801 Voy. Emp. Othoman 1: 252 |
Synonyms | alpestris Koch 1849 not Boiss.1838
infectoria subsp puberula O.Schwarz 1934 infectoria subsp glabra O.Schwarz 1937 lusitanica Boiss.1879, not Lam. nor Webb. lusitanica var. infectoria (G.Olivier) A.DC 1864 lusitanica subsp infectoria (G.Olivier) Mouillef. 1892 lusitanica subsp orientalis A.DC 1864 valentina Koch. 1849 not Cav.1793 |
Local names | |
Range | Asia
Minor, Southern Turkey, Greece; to 850 m; introduced in Europe in 1822;
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Growth habit | 5-6
m tall; often small shrub less than 2 m tall; |
Leaves | 4-6
x 1.5-5 cm; semi-evergreen; leathery; oblong, oboval-oblong or oval-oblong;
base rounded sometimes cordate, often asymmetrical; apex obtuse; margin
dentate (4-9 pairs of teeth) or crenate-dentate often wavy or rarely lobed;
hairless, shiny above; paler beneath or glaucous, glabrous or with some
stellate hairs; actually very polymorphous; leaves at the base of twigs
are often entire; 5-11 vein pairs; intercalary veins present; petiole
cylindrical 0.5 cm long; |
Flowers | male catkin 4-6 cm long, thin, glabrescent; female catkin short with 1-2 flowers at tip; |
Fruits | acorn
mucronate, ovoid elongated, 2.5-3.5 cm long, 1.2-1.8 cm in diameter; glabrous,
shiny light brown; solitary or paired, sessile or with a peduncle as long
as the petiole; enclosed 1/3 by 1.5-1.8 cm wide cup, hemispheric or subconical,
with lanceolate, appressed, tomentose scales; |
Bark, twigs and |
bark grey, scaly, ridged; twig with deciduous pubescence; stipules linear, deciduous, hairy; |
Hardiness zone, habitat | hardy (zone 6), but does not withstand late frost; all types of soils, especially rocky ones; not fast-growing; |
Miscellaneous | --
A. Camus : tome 2, p. 183, n° 153; -- Sub-genus Quercus, Section Quercus, Series Roburoid; -- Fairly rare; protected species; -- Close to Q. faginea, from which it differs mainly by having leaves and twigs glabrous or nearly so; -- The specific name "lusitanica" is ambiguous, since applied to several other species : 1/ lusitanica Webb and lusitanica auctores = Q.faginea Lam. 2/ lusitanica Boiss. = Q.infectoria Oliv. 3/ lusitanica Lam. = Q.fruticosa Brot. so, it is better to avoid using it. Q.valentina Cav. 1793 = Q.fruticosa Q.valentina K.Koch 1849 = Q.infectoria Q.valentina Lam. ex Steudel 1821 = Q.velutina |
Subspecies and varieties |
-- 2 subspecies : 1_subsp infectoria 2_subsp veneris (A.
Kern. in C.K.Schneid.) Meikle 1985 |
Pictures |
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