Oaks of the World

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  Quercus peninsularis

Trel. 1924 Mem. Natl. Acad. Sci. 20: 124

Diagnosis here

Local names Peninsular Oak ;
Range Baja California in Mexico (Sierra Juarez ), to 3000 m ;
Growth habit 4-10 m tall, but often smaller (1-4 m);
Leaves 5-8 cm; lanceolate, flat; leathery; pointed, base rounded or truncate; margin entire with 2-5 pairs of teeth; shiny green above, with some yellowish, large, stellate hairs; tufts of dense hairs beneath, at leaf axils; petiole 5-10 mm, hairy;
Flowers staminate flowers on hairy, 3 cm long catkins;
Fruits acorn 1.5 cm, ovoid; pointed; stalkless; cup scaly, pale brown, hairy inside and outside, enclosing 1/3 of nut; maturing in 1 year;

Bark, twigs and

bark reddish; twigs slender, hairy;
Hardiness zone, habitat hardy in zone 7-8; valleys in mountains, canyons;
Miscellaneous -- Sub-genus Quercus, section Lobatae, Series Erythromexicanae;
-- Resembles
Q.cedrosensis (which has smaller leaves), Q.chrysolepis (which has smaller, bicoloured leaves, greater acorns) and Q.agrifolia (which has dark green convex leaves, tomentose beneath);

Subspecies and