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Quercus incana Bartram
BLUEJACK OAK
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Quercus incana
© Copyright Joshua Wimberly 2012 · 5
Quercus incana

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Quercus incana
© Copyright Joshua Wimberly 2012 · 5
Quercus incana
Quercus incana
© Copyright Joshua Wimberly 2012 · 5
Quercus incana

Quercus incana
© Copyright Joshua Wimberly 2012 · 5
Quercus incana
Quercus incana
© Copyright Joshua Wimberly 2012 · 5
Quercus incana

Quercus incana
© Copyright Joshua Wimberly 2012 · 5
Quercus incana
Quercus incana
© Copyright Joshua Wimberly 2012 · 5
Quercus incana

Quercus incana
© Copyright Joshua Wimberly 2012 · 5
Quercus incana
Quercus incana
© Copyright Bobby Hattaway 2011 · 5
Quercus incana

Quercus incana
© Copyright Bobby Hattaway 2011 · 5
Quercus incana
Quercus incana
© Copyright Bobby Hattaway 2011 · 5
Quercus incana

Quercus incana
© Copyright Bobby Hattaway 2011 · 5
Quercus incana
Quercus incana
© Copyright Bobby Hattaway 2011 · 5
Quercus incana

Quercus incana
© Copyright Bobby Hattaway 2011 · 5
Quercus incana
Quercus incana
© Copyright Bobby Hattaway 2011 · 5
Quercus incana

Hosts · map
FamilyScientific name @ source (records)
_  Plantae @ I_GSJW (8)

Associates · map
FamilyScientific name @ source (records)
Lecanoraceae  Lecanora hybocarpa @ GAL (1)

Lecanora louisianae @ GAL (1)

Lecanora strobilina @ GAL (1)
Membracidae  Cyrtolobus clarus @ UDCC_TCN (2)

Cyrtolobus fenestratus @ UDCC_TCN (2)

Cyrtolobus rufulus @ UDCC_TCN (2)

Ophiderma flavicephala @ NCSU (2); UDCC_TCN (1)

Ophiderma pubescens @ NCSU (1)

Platycotis vittata @ NCSU (14)
Parmeliaceae  Hypotrachyna livida @ GAL (1)

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Following modified from Virginia Tech Dendrology
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Following modified from Plants Database, United States Department of Agriculture
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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 3 | Fagaceae | Quercus

11. Quercus incana W. Bartram, Travels Carolina. 378. 1791.

Bluejack oak

Quercus cinerea Michaux

Trees , deciduous, to 10 m. Bark dark brown to black with square plates. Twigs brown to reddish brown, 1-2.5 mm diam., tomentose to sparsely pubescent. Terminal buds light brown to reddish brown, narrowly ovoid to conic, 3.5-7 mm, distinctly 5-angled in cross section, scales pubescent, often tuft of reddish or silvery hairs at apex. Leaves: petiole 2-8(-10) mm, tomentose. Leaf blade narrowly ovate or elliptic to obovate, usually widest near middle, planar, 30-100 × 12-35 mm, base acute (rarely attenuate) to rounded, margins entire, with 1 apical awn (leaves on juvenile or 2d-flush growth may have 2-3 shallow lobes and 3-5 awns), apex acute or obtuse, rarely rounded; surfaces abaxially densely tomentose, hairs in vein axils often reddish, easily distinguished from others, adaxially often glossy, sparsely pubescent, especially along midrib and near base, veins often raised. Acorns biennial; cup saucer-shaped to bowl-shaped, 4.5-8 mm high × 10-18 mm wide, covering 1/4-1/3(-1/2) nut, outer surface pubescent or puberulent, inner surface uniformly pubescent, scale tips tightly appressed, obtuse or acute; nut ovoid (rarely subglobose) to broadly ellipsoid, 10-17 × 10-16 mm, occasionally striate, glabrate, scar diam. 5.5-10.5 mm.

Flowering spring. Well-drained sandy soils of barrens, hammocks, dunes, and upland ridges; 0-250 m; Ala., Ark., Fla., Ga., La., Miss., N.C., Okla., S.C., Tex., Va.

Quercus incana reportedly hybridizes with Q . falcata [= Q . × subintegra (Engelmann) Trelease], Q . hemisphaerica (D. M. Hunt 1989), Q . laurifolia (= Q . × atlantica Ashe), Q . laevis (= Q . × asheana Little), Q . marilandica (= Q . × cravenensis Little), Q . nigra (= Q . × caduca Trelease), and Q . phellos (E. J. Palmer 1948); with Q . pumila (D. M. Hunt 1989); and with Q . velutina (= Q . × podophylla Trelease), and questionably, Q . myrtifolia .

Updated: 2017-08-19 19:24:02 gmt
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