Oaks of the World

General data Classifications List of species Local names Back to
home page

  Quercus x hispanica
Author Lam. 1783
Synonyms cerris x suber
= crenata Lam. 1785 = not resolved synonym
= x pseudo-suber Santi 1795
= cerris var. lucombeana Loud. 1838
= x lucombeana Holway 1772 & Sweet 1827
= x aegylopifolia Pers.1807
= x fontanesii Guss. 1825
= cerris var. fulhamensis 1838
= x fulhamensis Steud. 1841
= x haliphleos Guss. 1844
= x pseudocerris Lojac.
1907, not Boiss. 1853, nec Rouy 1910
Local names false spanish cork-oak; Lucombe'oak;
Growth habit 15 m, but reaches sometimes 30m, trunk more than 2m in diameter;
Leaves 4-7 x 3-4 cm, semi-evergreen, oblong, pointed, base truncate or cuneate; 5-9 regular lobes on each side, mucronate, with sinuses half-way to the midrib; lustrous green above when silvery grey hairs have fallen, glaucous pubescent beneath; petiole tomentose 1 cm;
Flowers male flowers crimson becoming yellow, on 4 cm catkins;
Fruits acorn 2.5 cm, brown, apex slightly depressed, on thick, tomentose, 1 cm long stalk; enclosed 1/3 by cup; cup with small, pliable, twisting, reflected, 0.2-0.5 cm long scales; maturing in 2 years;

Bark, twigs and

bark variable : grey, light, furrowed ou smooth,or broken into corky plates; young twigs grey brown densely pubescent becoming glabrous; terminal bud scaly (lateral buds not scaly);
Hardiness zone, habitat all types of soils;
Miscellaneous rather variable taxon, depending on whether Q.cerris or Q.suber is dominant; consequently, various names have been applied to this species...
Subspecies and
-- Q. x turneri A.DC (not Willd.) is synonym of Q. x hispanica; whereas the species named Q. x turneri Willd. is actually a cultivar (= Quercus 'Turneri') of an artificial hybrid between Q. ilex and Q. robur (see the description here); but for Govaerts & Frodin, 1998, Q. turneri A.DC is synonym of Q. x pseudoturneri C.K.Schneider, while this name is considered everywhere as synonym of the cultivar 'Turneri' !

-- For the same Authors, Q.fontanesii is a hybrid between Q.gussonei and Q.suber, in France and Spain.

-- Q. crenata is strongly threatened with extinction : only ca. 1000 plants remains in Italy, where it is protected, and a few in France. Recent (2018) genetic studies indicate that this taxon may represent the remainder of the ancestral form from which Q. suber evolved, rather than a hybrid between Q. suber and Q. cerris.