Oaks of the World

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 Quercus furfuracea
Author Liebm. 1854 Overs. Kongel. Danske Vidensk. Selsk. Forh. Medlemmers Arbeider 1854: 189
Synonymsacutifolia var. furfuracea (Liebm.) Oerst. 1869
Local names 
Range Mexico (Puebla, Michoacan, San Luis Potosi) ; 1300-2600 m;
Growth habit 3-6 m tall;
Leaves 4-10 cm x 2.5-5; deciduous; thick, stiff, leathery; elliptic to ovate; apex pointed, bristle-tipped; base rounded, sometimes cordate ; margin thickenned, not or very slightly revolute, with 3-10 pairs of aristate teeth (teeth 4 mm long); shiny olive green above, with long hairs along midrib, and short ones on the limb; at first densely greyish pubescent beneath, then the trichomes detach from the blade, into kinds of squames, leaving axil tufts; 6-9 vein pairs, parallel, flat or impressed adaxially, prominent beneath; petiole 1-3 cm long, yellowish, densely hairy, glabrescent;
Flowerspistillate catkins 1-2 cm long, with 1 to several flowers;
Fruits acorn ovoid 1 cm long, singly or paired on a 1-2 cm long peduncle; cup half-round with pubescent scales enclosing 1/2 the nut; maturing in 2 years; 

Bark, twigs and
buds

twig 1-3 mm in diameter, reddish-brown, with dense yellowish pubescence lasting several seasons, and with inconspicuous lenticels; bud ovoid 1-3.6 mm long, reddish, lustrous, obtuse, with pubescent scales;  
Hardiness zone, habitat 
Miscellaneous-- A. Camus : n° 386;
-- Sub-genus Quercus, section Lobatae, sub-section Acutifoliae;

-- Possible confusion with Q. meavei as both have a fulvous tomentum on twigs and petiols, but meavei has nearly glabrous, wider leaves (to 7 cm), longer teeth (2 to 8 mm), and 14-19 veins pairs ;
Subspecies and
varieties
 
Pictures