|Quercus x turneri|
|Synonyms||ilex x robur
= austriaca var. sempervirens hort.
= sempervirens hort.
= glandulifera Mast. not Bl.
|Local names||"Turner's oak"|
|Growth habit||15 m ; spreading crown, branched from low on the trunk;|
|Leaves||4-11cm long, semi-evergreen, weakly toothed near apex, shallowly lobed, leathery, dark lustrous green above, base cuneate; petiole 0.4 to 0.8cm long;|
|Fruits||acorns 2cm long, several on a tomentose stalk to 7cm;|
Bark, twigs and
|bark purplish grey, smooth, becoming shallowly ridged;|
|Hardiness zone, habitat|
origin, born during the 18th centuty in Essex (Turner's nurseries);
propagation only by grafting; cultivar 'pseudo-turneri '(also known under
other names : Q.austriaca sempervirens, Q.pseudo-turneri
Schneid. and Q.aizoon Koehne) is the most often cultivated, with
leaves a little larger than the type;
-- For A.Camus, one can separate 2 species depending on whether ilex dominate robur or vice versa :
1/ ilex > robur
= x turneri Willd. 1899
2/ ilex < robur
= x pseudoturneri C.K.Schneider 1904
= turneri var. pseudoturneri Elwes and Henry 1910
= x aizoon Koehne 1904
-- For Govaerts & Frodin (1998) it is quite different : they distinguish :
1/ Q.x turneri Willd.
= Q.'Turneri' (the species described above)
2/ Q.x turneri A.DC
= Q.x hispanica Lam.
= Q.x turneri var. pseudoturneri (C.K.Schneid.) Elwes and Henry
= Q.cerris x Q.suber