Oaks of the World

General dataClassificationsList of speciesLocal namesBack to
home page

 Quercus pringlei
AuthorSeemen ex Loes. 1900
Synonyms filiformis C.H.Mull. 1936
Local names 
Range Mexico (Nuevo Leon, Queretaro, Coahuila, Hidalgo, Tamaulipas, Zacatecas) ; 1500-2800 m;
Growth habit usually less than 2 m tall, but reaches 5 m;
Leaves 1-3(-4) cm long, 0.5-2.5 wide; evergreen; semi-leathery; lanceolate to elliptic or oblong-lanceolate; apex mucronate, obtuse or pointed; base rounded to cordate; margin thick, flat, cartilaginous, entire or seldom with 1-3 pairs of small, mucronate teeth in apical 2/3; yellowish green, glabrescente above, with stalkless, stellate trichomes and less often dark glandular ones; beneath with stellate pubescence at first, along with long, simple glandular hairs, then glabrous and often whitish green; 6-9 straight vein pairs nearly plane both sides, not evident; epidermis papillose ; petiole 2-5 mm long, with short pubescence;
Flowers in April; male catkins 1-2 cm long, with numerous flowers ; female catkins pubescent, 2-4 mm long, with 1-3 flowers;
Fruits acorn globose 1 cm; singly or to 3 on a very short peduncle less than 10 mm long; cup half-round, 9-12 mm in diameter, enclosing 1/3 or 1/2 of nut, with pubescent scales; maturing in 1 year in September;

Bark, twigs and
buds

bark thin, fissured; twig slender (1-2 mm in diameter), with dense, glabrescent tomentum made of stalkless, stellate hairs, simple hairs and dark glandular ones; bud 1-2 mm, almost globose, reddish; stipules hairless, 4 mm long, deciduous;  

Hardiness zone, habitat hardy zone 7;
Miscellaneous -- A. Camus : n° 177;
-- section Quercus ; sub-section Opacae;
-- related to
Q.grisea ;
-- resembles sometimes Q. depressipes, but the leaves of this species are dull, glaucous, oblong-oboval to nearly orbicular, and the peduncles are longer (1.5-3.5 cm);
Subspecies and
varieties
-- fo. dentata C.H.Muller 1936
margin dentate except in lower 1/3, teeth with recurved mucro; leaves abaxially yellowish stellate tomentose at first, becoming glabrous;
Pictures