| Quercus subspathulata | |
| Author |
Trel. 1924 Mem. Natl. Acad. Sci. 20: 56 Diagnosis here |
| Synonyms | pallidifolia
C.H.Muller 1972 |
| Local names | encino borrego; encino mixcahue; |
| Range | Mexico (Chihuahua, Sonora, Michoacan, Jalisco) ; 900-1600 m ; |
| Growth habit | 4-15
m tall; trunk 15-45 cm in diameter; |
| Leaves | 6-16
x 3-12 cm; deciduous, oboval, spatulate; leathery; apex obtuse to rounded,
sometimes retuse; base narrowly rounded to heart-shaped, sometimes auricled;
margin thick, slightly revolute, wavy, toothed (3-8 pairs of obtuse teeth);
both sides nearly glabrous; lustrous pale green above; waxy-glaucous beneath
with sometimes a few glandular hairs and fewer stellate trichomes along
large veins; 8-12 vein pairs remotely impressed adaxially, prominent beneath;
stout, hairless petiole 3-5 mm long; |
| Flowers | |
| Fruits | acorn
0.7-1 cm; singly or to 3 together on a peduncle variable in length; enclosed
1/3 or more by tomentose cup; maturing in 1 year; |
|
Bark, twigs and |
twigs
2-4 mm thick, hairless, grey, pruinose, with pale yellow lenticels; bud
ovoid 2-3 mm long; |
| Hardiness zone, habitat |
not hardy (zone 8-9); all types of soils; |
| Miscellaneous | --
Sub-genus Quercus, Section Quercus, Series Leucomexicanae; -- A.Camus : n° 198; -- For Govaerts & Frodin (1998), Q.pallidifolia is a separate species, but not for today's Mexican Authors (Susana Valencia-Avalos, 2004). |
| Subspecies and varieties |
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| Pictures |
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