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Quercus gambelii Nutt.
GAMBEL OAK
Life   Plantae   Dicotyledoneae   Fagaceae   Quercus

Quercus gambelii, fruit - as borne on the plant
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, fruit - as borne on the plant

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Quercus gambelii, fruit - lateral or general close-up
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, fruit - lateral or general close-up
Quercus gambelii, whole tree or vine - general
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, whole tree or vine - general

Quercus gambelii, leaf - showing orientation on twig
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, leaf - showing orientation on twig
Quercus gambelii, leaf - whole upper surface
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, leaf - whole upper surface

Quercus gambelii, leaf - margin of upper + lower surface
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, leaf - margin of upper + lower surface
Quercus gambelii, inflorescence - whole - male
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, inflorescence - whole - male

Quercus gambelii, twig - orientation of petioles
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, twig - orientation of petioles
Quercus gambelii, bark - of a small tree or small branch
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, bark - of a small tree or small branch

Quercus gambelii, whole tree or vine - general
© Copyright Steve Baskauf, 2002-2011 · 4
Quercus gambelii, whole tree or vine - general
Quercus gambelii
© Copyright Mel Harte 2010 · 3
Quercus gambelii

Quercus gambelii
© Copyright Mel Harte 2010 · 3
Quercus gambelii
Quercus gambelii
© Copyright Mel Harte 2010 · 3
Quercus gambelii

Quercus gambelii
© Copyright Mel Harte 2010 · 3
Quercus gambelii
Quercus gambelii
© Copyright Mel Harte 2010 · 3
Quercus gambelii

Associates · map
FamilyScientific name @ source (records)
Aphididae  Hoplochaitophorus quercicola @ CSUC_TCN (7)

Myzocallis ( @ AMNH_PBI (6)

Myzocallis @ AMNH_PBI (5)

Nearctaphis crataegifoliae @ AMNH_PBI (2)

Neosymydobius albasiphus @ AMNH_PBI (2)

Neosymydobius @ AMNH_PBI (5)

Stegophylla quercifoliae @ NCSU (8)

Thelaxes californica @ NCSU (2)
Botryosphaeriaceae  Phyllosticta livida @ BPI (1)
Cicadellidae  Empoasca solana @ III (1)

Eratoneura carmini @ III (2)
Cicadidae  Platypedia putnami @ CSUC_TCN (3)
Corticiaceae  Corticium cremoricolor @ BPI (3)
Cronartiaceae  Cronartium californicum @ BPI (4)

Cronartium cerebrum @ BPI (40)

Cronartium conigenum @ BPI (4)

Cronartium fusiforme @ BPI (14)

Cronartium meineckii @ BPI (10)

Cronartium quercuum @ BPI (1)

Cronartium strobilinum @ BPI (32)
Cryphonectriaceae  Endothia singularis @ BPI (6)
Dermateaceae  Cylindrosporium rubrum @ BPI (1)
Diaspididae  Protodiaspis didymus @ CSCA_TCN (1)
Diatrypaceae  Diatrype albopruinosa @ BPI (4)

Diatrypella verruciformis @ BPI (2)
Erysiphaceae  Erysiphe @ BPI (1)

Microsphaera alni @ BPI (14)

Microsphaera alphitoides @ BPI (2)

Microsphaera penicillata @ BPI (1)
Exidiaceae  Exidia glandulosa @ BPI (1)
Hymenochaetaceae  Hymenochaete rubiginosa @ BPI (2)
Hyphodermataceae  Hyphoderma anasaziense @ BPI (1)
Kermesidae  Allokermes galliformis @ CSCA_TCN (4)

Allokermes gillettei @ CSCA_TCN (1)
Lachnocladiaceae  Scytinostroma portentosum @ BPI (1)
Membracidae  Archasia auriculata @ UDCC_TCN (1)

Cyrtolobus acutus @ CSUC_TCN (110); UDCC_TCN (23); AMNH_ENT (11)

Cyrtolobus limus @ CSUC_TCN (65); AMNH_ENT (2)

Cyrtolobus maculifrontis @ CSUC_TCN (29); UDCC_TCN (7)

Cyrtolobus pictus @ UDCC_TCN (3)

Cyrtolobus @ AMNH_ENT (4)

Glossonotus univittatus @ CSUC_TCN (10); UDCC_TCN (2)

Grandolobus grandis @ UDCC_TCN (1); NCSU (2)

Heliria scalaris @ UDCC_TCN (1)

Heliria sinuata @ UDCC_TCN (3)

Microcentrus perditus @ CSUC_TCN (4)

Stictocephala basalis @ UDCC_TCN (1)

Telamonanthe pulchella @ UDCC_TCN (3)

Tortistilus wickhami @ UDCC_TCN (3)

Xantholobus inflatus @ UDCC_TCN (2)
Meruliaceae  Merulius corium @ BPI (2)
Microstromataceae  Microstroma album @ 407626B (1); BPI (1); 407626A (1)

Microstroma @ BPI (1)
Miridae  Atractotomus cercocarpi @ AMNH_PBI (2)

Atractotomus ovatus @ AMNH_PBI (234); BPBM_TCN (1)

Bisulcopsallus fuscipunctatus @ AMNH_PBI (6)

Bisulcopsallus polhemorum @ AMNH_PBI (39)

Blepharidopterus provancheri @ AMNH_IZC (2)

Ceratocapsus denticulatus @ AMNH_IZC (17)

Ceratocapsus @ AMNH_PBI (3)

Deraeocoris brevis @ AMNH_ENT (16)

Deraeocoris nebulosus @ AMNH_ENT (3)

Deraeocoris quercicola @ AMNH_ENT (1)

Irbisia californica @ AMNH_PBI (1)

Irbisia serrata @ AMNH_IZC (3)

Knightomiris distinctus @ AMNH_PBI (2); AMNH_ENT (10)

Lopidea falcicula @ AMNH_ENT (1)

Lopidea ute @ AMNH_ENT (6)

Lygocoris deraeocoroides @ AMNH_ENT (3)

Occidentodema mcfarlandi @ AMNH_IZC (9)

Occidentodema polhemusi @ AMNH_PBI (9); AMNH_IZC (104)

Occidentodema @ AMNH_IZC (1)

Phytocoris cercocarpi @ AMNH_ENT (1)

Phytocoris decurvatus @ AMNH_ENT (70)

Phytocoris dumicola @ AMNH_ENT (3)

Phytocoris eurekae @ AMNH_ENT (17)

Phytocoris fraterculus @ AMNH_ENT (1)

Phytocoris hopi @ AMNH_ENT (3)

Phytocoris inops @ AMNH_ENT (16)

Phytocoris intermontanus @ AMNH_ENT (12); AMNH_IZC (1)

Phytocoris interspersus @ AMNH_ENT (3)

Phytocoris kiowa @ AMNH_ENT (13)

Phytocoris stellatus @ AMNH_ENT (3)

Pilophorus vicarius @ AMNH_PBI (1)

Psallovius piceicola @ AMNH_PBI (1)

Pygovepres vaccinicola @ AMNH_PBI (46)
Mycosphaerellaceae  Mycosphaerella spleniata @ BPI (1)
Nectriaceae  Nectria cinnabarina @ BPI (1)
Peniophoraceae  Peniophora burtii @ BPI (3)

Peniophora carnosa @ BPI (1)

Peniophora incarnata @ BPI (1)
Pentatomidae  Apateticus bracteatus @ CSUC_TCN (1)

Banasa rolstoni @ CSUC_TCN (1)

Brochymena sulcata @ CSUC_TCN (1)

Dendrocoris humeralis @ CSUC_TCN (3)

Euschistus inflatus @ CSUC_TCN (1)
Phanerochaetaceae  Phanerochaete carnosa @ BPI (3)

Phanerochaete velutina @ BPI (1)
Platygloeaceae  Platygloea laplata @ BPI (1)
Polyporaceae  Fomes everhartii @ BPI (10)

Fomes igniarius @ BPI (3)

Polyporus arcularius @ BPI (2)

Polyporus coruscans @ BPI (1)

Polyporus dryophilus @ BPI (4)

Polyporus rheades @ BPI (3)

Polyporus tulipiferus @ BPI (1)

Poria ferruginosa @ BPI (2)

Poria pulchella @ BPI (1)

Poria xanthospora @ BPI (1)
Steccherinaceae  Steccherinum ochraceum @ BPI (1)
Stereaceae  Aleurodiscus cremeus @ BPI (1)

Stereum albobadium @ BPI (4)

Stereum hirsutum @ BPI (7)
Taphrinaceae  Taphrina caerulescens @ BPI (8)
Tremellaceae  Biatoropsis usnearum @ BPI (1)
Valsaceae  Valsa ambiens @ BPI (1)
_  Articularia quercina @ BPI (1)

Ceratocapsidea fusiformis @ AMNH_IZC (12)

Coelosphaeria exilis @ BPI (1)

Euscelidius variegatus @ AMNH_PBI (2)

Helostroma album @ BPI (1)

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Following modified from Virginia Tech Dendrology
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FNA | Family List | FNA Vol. 3 | Fagaceae | Quercus

59. Quercus gambelii Nuttall, J. Acad. Nat. Sci. Philadelphia. 1(2): 179. 1848.

Gambel oak

Quercus douglasii Hooker & Arnott var. gambelii (Nuttall) A. de Candolle; Q . gambelii var. gunnisonii Wenzig; Q . lesueuri C. H. Muller; Q . marshii C. H. Muller; Q . novomexicana Rydberg; Q . undulata Torrey var. gambelii (Nuttall) Engelmann; Q . utahensis Rydberg

Shrubs or trees , deciduous, shrubs sometimes clumped and spreading, trees small or moderately large. Bark gray or brown, scaly. Twigs brown or reddish brown with few, inconspicuous lenticels, 1.5-2.5 mm diam., glabrous or stellate-pubescent. Buds brown, ovoid, ca. 3 mm, apex acute or obtuse, sparsely pubescent, becoming glabrate. Leaves: petiole l0-20 mm. Leaf blade elliptic to obovate or oblong, deeply to shallowly 4-6-lobed, (40-)80-120(-160) × (25-)40-60(-100) mm, membranous, base truncate to cuneate, margins entire or coarsely toothed, lobes oblong, rounded or subacute, sinuses acute or narrowly rounded at base, reaching more than 1/2 distance to midrib, secondary veins 4-6 on each side, each passing into lobe, branched, apex broadly rounded; surfaces abaxially dull green, sometimes glaucous, densely velvety with erect 4-6-rayed hairs, sometimes glabrate or persistently villous only near midribs, secondary veins prominent, adaxially lustrous dark green, appearing glabrate, microscopically pubescent, secondary veins slightly raised. Acorns solitary or paired, subsessile or on peduncle to 10(-30) mm; cup deeply cup-shaped, 5-8(-17) mm deep × 7-l5(-25) mm wide, enclosing 1/4-1/2 nut, base round, margin thin, scales closely appressed, ovate, markedly tuberculate, proximally gray-tomentulose; nut light brown, ovoid to ellipsoid, (8-)12-15(-33) × 7-12(-18) mm. Cotyledons distinct.

Flowering mid-late spring. Montane conifer, oak-maple, and higher margins of pinyon-juniper woodlands; 1000-3030 m; Ariz., Colo., Nev., N.Mex., Okla., Tex., Utah, Wyo.; Mexico (Chihuahua, Coahuila, and Sonora).

Numerous hybrids of Quercus gambelii with various scrub oaks have been reported, including Q . grisea and Q . turbinella . Such hybrids in general have shallowly lobed or dentate, semipersistent leaves and intermediate characteristics of pubescence and fruit between parental types. Such hybrids are usually referred to as the Quercus × undulata complex because of widespread application of the latter name to various populations.

One population from San Juan County, Utah, with larger fruit but otherwise not differing from typical Quercus gambelii , has been recognized as Q . gambelii var. bonina Welsh. Unless other characters are found to support this segregation, the plants are best not treated as a formal taxon, particularly considering the extensive variation and hybridization associated with Q . gambelii throughout its range.

Numerous putative hybrid swarms occur throughout the range of Quercus gambelii that involve a number of suspected parental species. Most of these populations have, at one time or another, been referred to Quercus undulata Torrey. The putative hybrids have serrate or shallowly lobed leaves and considerable variation in habit, leaf pubescence, and acorn morphology. J. M. Tucker (1961, 1969, 1971) and J. M. Tucker et al. (1961) have identified the major components of the Q . undulata complex as Q . turbinella (western Utah and northwestern Arizona, and central Colorado), Q . grisea (New Mexico and southern Colorado), Q . havardii (southeastern Utah and northwestern Arizona), Q . mohriana (northeastern and southern New Mexico), Q . arizonica (central Arizona), and Q . muhlenbergii (eastern and central New Mexico). Quercus macrocarpa has been implicated as a parent of variable populations in New Mexico (J. M. Tucker and J. R. Maze 1966). Because of the complex variability in these populations, no effort has been made to treat them separately here; indeed, it would be impossible to produce usable keys if these were included as formal taxa.

Hybrids derived from Quercus gambelii and an evergreen species are often semideciduous, retaining a variable portion of green or brownish leaves over the winter.

Quercus gambelii was used medicinally by the Navaho-Ramah to alleviate postpartum pain, as a cathartic, as a ceremonial emetic, and as a life medicine (D. E. Moerman 1986).

Updated: 2020-10-25 00:14:53 gmt
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