Oaks of the World

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  Quercus orocantabrica
Author Rivas-Mart., Penas, T.E.Diaz & Llamas 2002 Itinera Geobot. 15: 706
Synonyms robur subsp. broteroana O. Schwarz 1937
Local names roble cantabrica
Range Cantabriques Mounts, in North of Spain (Asturias), Central Spain; South Europe;
North Africa; Near East to Transcaucasia and Iran;
Growth habit small tree, or shrub;
Leaves papery, covered with thick cuticle; marcescent; oblong; lustrous; base weakly auricled; margin crenate or with inequal lobes and more or less deep sinuses; abaxially pubescent to tomentose, with simple, stellate, multistellate or fascicled hairs; 6-8 veins pairs forked near margin; petiole to 1.5 cm.
Flowers male flowers with bigger stamens than those of Q.robur, with pubescent perianth; 
Fruits acorn globose or widely ovate; basal scare flat; apex subtruncate; peduncle to 15 cm; wider and flatter cup than Q.robur, with scales pointed, appressed though free, pinkish glabrescent above,  densely  whitish tomentose on their margin ;

Bark, twigs and
buds

young twig often with simple hairs, then glabrous; budscales 3-4 mm long, glabrescent outside, with margin ciliate and whitish;
Hardiness zone, habitat wet places, on acidic siliceous soils ;
Miscellaneous

-- Subgenus Quercus, Section Quercus, Subsection Roburoid;
-- Was considered as Q.x rosacea (= Q. robur X Q. petraea).
-- Hybridizes with Q. petraea ( = Q. x puentei ), Q. faginea (= Q. x duriensis), Q. fruticosa (= Q. x gallaecica) and with Q. pyrenaica (= Q. x tavaresii).
Subspecies and
varieties
Pictures

 

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