Quercus georgiana

M. A. Curtis

Amer. J. Sci. Arts, ser. 2, 7: 406. 1849.

Common names: Georgia oak
EndemicIllustrated
Treatment appears in FNA Volume 3.

Trees, deciduous, to 15 m. Bark gray to light-brown, scaly. Twigs deep red, 1-2 mm diam., glabrous. Terminal buds redbrown, ovoid to subconic, 2.5-5 mm, glabrous or scales somewhat ciliate. Leaves: petiole 6-23 mm, glabrous or with a few persistent hairs. Leaf-blade broadly ovate to elliptic or obovate, 40-130 × 20-90 mm, base cuneate to obtuse, margins with 3-5 (-7) oblong lobes and up to 10 awns, apex acute; surfaces abaxially glabrous except for conspicuous axillary tufts of tomentum, veins raised, adaxially planar, glabrous. Acorns biennial; cup thin, saucer-shaped, 4-6 mm high × 9-14 mm wide, covering 1/3 nut, outer surface puberulent, inner surface glabrous or with a few hairs around scar, scale tips appressed, acute; nut globose or ovoid, 9-14 × 9-14 mm, glabrous, scar diam. 4-7.5 mm.


Phenology: Flowering spring.
Habitat: Granitic outcrops and dry slopes and knolls
Elevation: 50-500 m

Discussion

Quercus georgiana reportedly hybridizes with Q. marilandica (= Q. ×smallii Trelease) and Q. nigra, although D. M. Hunt (1989) has questioned the validity of the former report.

Selected References

None.

Lower Taxa

None.
... more about "Quercus georgiana"
Kevin C. Nixon +
M. A. Curtis +
oblong +
furrowed +  and smooth +
gray;light-brown +
cuneate;obtuse +
2-6-lobed +
pistillate +, capitate +  and spicate +
Georgia oak +
connate +  and distinct +
starchy +  and fleshy +
tuberculate +
saucer--shaped +
×9-14 +, 4mm +  and 6mm +
multibracteate +, spiny +  and scaly +
Ala. +, Ga. +  and S.C. +
50-500 m +
pistillate +  and staminate +
biennial +, annual +  and maturation +
1-seeded +  and winged +
in groups +  and enclosed +
Granitic outcrops and dry slopes and knolls +
persistent +
pistillate +, spicate +  and staminate +
with a few hairs +  and glabrous +
silky-tomentose +
4 cm40 mm <br />0.04 m <br /> (13 cm130 mm <br />0.13 m <br />) +
broadly ovate +  and elliptic or obovate +
arranged +  and alternate +
3 (?) +  and 5 (?) +
entire +, dentate +  and serrate +
toothed +  and entire +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
ovoid +  and globose +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
with a few persistent hairs +  and glabrous +
0.6 cm6 mm <br />0.006 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
Flowering spring. +
Amer. J. Sci. Arts, ser. +
distinct +
few-to-many +
reduced +
0.4 cm4 mm <br />0.004 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
anastomosing +, branching +  and unbranched +
Endemic +  and Illustrated +
inconspicuous +
distinct +
linear-spatulate +
Quercus georgiana +
Quercus sect. Lobatae +
species +
ovoid +  and subconic +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
bristle-tipped +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +