Quercus rugosa

Nee.

Anales Ci. Nat. 3: 275. 1801.

Common names: Netleaf oak
Illustrated
Synonyms: Quercus ariifolia Trelease Quercus diversicolor Trelease Quercus durangensis Trelease Quercus reticulata Humboldt & Bonpland Quercus rhodophlebia Trelease Quercus vellifera Trelease
Treatment appears in FNA Volume 3.

Shrubs or trees, evergreen, usually moderate-sized, rarely large. Bark light or dark-brown, scaly. Twigs brown, turning gray with age, 1-2 mm diam., tomentose to tomentulose, variously glabrate or persistently pubescent. Buds brown, ovoid, 2-4 mm, apex obtuse, sparsely pubescent or eventually glabrate. Leaves: petiole to 7 mm. Leaf-blade broadly obovate or panduriform to orbiculate or elliptic, rarely narrowly obovate, usually cupped, strongly concave proximally, sometimes planar, to 100 × 70 mm, stiff, leathery, base deeply or shallowly cordate, margins usually somewhat revolute, cartilaginously thickened, undulately crisped or flat with inconspicuous or coarse mucronate teeth near apex, secondary-veins 8-10 (-12) on each side, branched, apex broadly rounded, rarely subacute; surfaces abaxially dull, glaucous, or densely brownish tomentose, becoming nearly glabrate or pubescence persistent, especially about midribs, secondary-veins very prominently raised, reticulate, adaxially dark green, lustrous, sparsely stellate-pubescent especially about base of midrib, secondary-veins impressed. Acorns 1-3 or more on slender axillary peduncle 30-60 mm; cup deeply cupshaped to saucer-shaped, to 9 mm deep × 15 mm wide, enclosing to 1/2 nut, scales loosely appressed, characteristically somewhat spreading, brown, ovate, tuberculate-thickened or only slightly so, tomentose or obscurely tomentulose; nut light-brown, ovoid to elliptic, to 20 × 15 mm, glabrous or minutely villous. Cotyledons distinct, often reddish or purple.


Phenology: Flowering early–late spring.
Habitat: Wooded slopes
Elevation: 2000-2500 m

Distribution

V3 508-distribution-map.gif

Ariz., N.Mex., Tex., Mexico, Central America (Guatemala)

Discussion

Quercus rugosa occurs on wooded slopes at high elevations in trans-Pecos Texas, southern New Mexico, and Arizona, and throughout most of the mesic montane parts of Mexico, south to Guatemala.

Selected References

None.

Lower Taxa

None.
... more about "Quercus rugosa"
glabrate +  and pubescent +
subacute +, rounded +  and obtuse +
Kevin C. Nixon +
dark-brown;light +
cordate +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
2-6-lobed +
pistillate +, capitate +  and spicate +
Netleaf oak +
purple +  and reddish +
starchy +  and fleshy +
deeply cupshaped +  and saucer-shaped +
0 cm0 mm <br />0 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
multibracteate +, spiny +  and scaly +
Ariz. +, N.Mex. +, Tex. +, Mexico +  and Central America (Guatemala) +
2000-2500 m +
pistillate +  and staminate +
biennial +, annual +  and maturation +
1-seeded +  and winged +
in groups +  and enclosed +
Wooded slopes +
pistillate +, spicate +  and staminate +
tomentulose +  and glabrate +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
planar +, concave +, obovate +, panduriform +  and orbiculate or elliptic +
arranged +  and alternate +
entire +, dentate +  and serrate +
light-brown +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
villous +  and glabrous +
ovoid +  and elliptic +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0 cm0 mm <br />0 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering early–late spring. +
Anales Ci. Nat. +
connate +  and distinct +
tomentulose +  and tomentose +
few-to-many +
reduced +
only slightly +  and tuberculate-thickened +
impressed +  and raised +
stellate-pubescent +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Illustrated +
inconspicuous +
distinct +
subulate +  and dilated +
enlarged +
glabrate +, tomentose +, brownish +  and glaucous +
Quercus ariifolia +, Quercus diversicolor +, Quercus durangensis +, Quercus reticulata +, Quercus rhodophlebia +  and Quercus vellifera +
Quercus rugosa +
Quercus sect. Quercus +
species +
spheric +  and ovoid terete or angled +
bristle-tipped +
inconspicuous +
mucronate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
tomentose +  and tomentulose variously glabrate or persistently pubescent +
tree +  and shrub +
large +  and medium-sized +