Search for featured oaks. Acorns and leaves not drawn in same scale.
Friday
Tuesday
Quercus marilandica
Name: Quercus marilandica Münchh. (1770) |
Common Names: |
| Barren Oak Black Oak Blackjack Oak Jack Oak |
Range: USA: (Alabama, Arkansas, Delaware, Florida, Georgia (US), Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Mississippi, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, Washington DC) |
Monday
Quercus virginiana
Quercus virginiana Mill. (1768)
Synonyms:
Quercus andromeda Riddell 1853
Quercus hemisphaerica hort. ex Endl. 1848
Quercus phellos var. obtusifolia Lam. 1785
Quercus phellos var. sempervirens Marshall 1785
Quercus sempervirens Walt. 1788, (not Mill.)
Quercus virens Ait. 1789
Quercus virginiana var. eximea Sarg. 1918
Local Names:
Range/Natural Distribution:
USA: (Alabama, Florida, Georgia (US), Louisiana, Missouri, North Carolina, South Carolina, Texas, Virginia)
References:
Oak ICRA Checklist
Oaks of the World
Wednesday
Quercus falcata
Quercus falcata Michx. (1801) |
| Common Names |
| Natural Distribution
USA: (Alabama, Arkansas, Delaware, Florida, Georgia (US), Illinois, Indiana, Kentucky, Louisiana, Maryland, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, Washington DC)
|
| Synonyms
Quercus cuneata Wangenh. (1787)
Quercus digitata Sudw. (1892)
Quercus triloba Michx. (1801)
Quercus nobilis K. Koch (1873)
Quercus hypophlaeos Kirchn. (1864)
Reference: Report from The Oak ICRA Checklist
|
Labels:
Quercus falcata
Tuesday
Quercus lyrata
Name: Quercus lyrata Walter (1788)
Synonyms:
Quercus bicolor var. lyrata (Walt.) Dippel 1891
Local Names:
Overcup Oak
Swamp Post Oak
Swamp White Oak
Water White Oak
White Oak
Range:
USA: (Alabama, Arkansas, Delaware, Florida, Georgia (US), Illinois, Indiana, Kentucky, Louisiana, Maryland, Minnesota, Missouri, New Jersey, North Carolina, Oaklahoma, South Carolina, Tennessee, Texas, Virginia)
References:
Oak ICRA Checklist
Labels:
Quercus lyrata
Monday
Thursday
Wednesday
Tuesday
Quercus rubra
Name:
Quercus rubra L. (1753)
Synonyms:
Quercus borealis F. Michx. (1817)
Quercus rubra var. maxima Marshall (1785)
Quercus ambigua F. Michx. (1811)
Local Names:
Eastern Red Oak
Northern Red Oak
Red Oak
Range:
CANADA: (New Brunswick, Nova Scotia, Ontario, Prince Edward Island, Quebec), USA:
(Alabama, Arkansas, Connecticut, Delaware, Georgia (US), Illinois,
Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland,
Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New
Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma,
Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont,
Virginia, West Virginia, Wisconsin, Washington DC)
References:
Oak ICRA Checklist
Monday
Quercus glauca
Name:
Quercus glauca Thunb. (1784)
Synonyms:
Quercus vibrayeana Franch. & Sav. (1878)
Quercus bambusifolia Fortune (1860) nom. non rite publ.
Quercus glauca var. micrococca Maxim.
Quercus glauca var. linearifolia Koidz. (1930)
Quercus lacera Blume (1851)
Quercus vaniotii H. Lév. (1913)
Quercus glauca var. caesia Blume (1851)
Quercus ichangensis Nakai ex A. Camus (1938)
Quercus repandifolia J. C. Liao (1968)
Quercus globosa (T. P. Lin & T. S. Liu) J. C. Liao (1970)
Local Names:
Arakashi
Blue Japanese Oak
Japanese Blue Oak
Ring-cupped Oak
Range:
WEST ASIA: AFGHANISTAN, HIMALAYA: INDIA: (Jammu & Kashmir, Sikkim), NEPAL, BHUTAN, FAR EAST ASIA: CHINA: (Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, W Sichuan, Taiwan, E Xizang, W to SW Yunnan, Zhejiang), KOREA, JAPAN: (Honshu, Shikoku, Kyushu, Ryukyu)
References:
Oak ICRA Checklist
Friday
Thursday
Quercus costaricensis
Name:
Quercus costaricensis Liebm. (1854)
Synonyms:
Quercus costaricensis f. kuntzei Trel. 1924
Quercus endresi Trel. 1924
Quercus irazuensis Kuntze 1891 (A. Camus : 319)
Local Names:
Encino, Roble Encino;
Range:
CENTRAL AMERICA: Honduras, Costa Rica, Panama
References:
Oak ICRA Checklist
Oaks of the World
Tuesday
Quercus laevis
Name:
Quercus laevis Walter (1788)
Synonyms:
Quercus catesbaei Michx. (1801)
Local Names:
Range:
USA: (Alabama, Florida, Georgia (US), Louisiana, Mississippi, North Carolina, South Carolina, Virginia)
References:
Oak ICRA Checklist
Monday
Quercus jinpinensis
Name: Quercus jinpinensis (Y. C. Hsu & H. Wei Jen) C. C. Huang (1992)
Synonyms:
Cyclobalanopsis jinpinensis Y.C.Hsu & H.Wei Jen 1976
Local Names:
jin ping qing gang
Range:
CHINA: (SE Yunnan)
References:
Oak ICRA Checklist
Oaks of the World
Illustration
Quercus libani
Name:
Quercus libani G. Olivier (1801)
Synonyms:
Quercus carduchorum K.Koch 1849
Quercus serratifolia Benth. ex Petzh. & Kirchn. 1864
Quercus squarrosa Kotschy ex A.DC 1864
Quercus tchihatchewii Kotschy 1860
Local Names:
Lebanon Oak
Mount Lebanon Oak
Range:
WEST ASIA: W Iran, NW Iraq, N Israel, N & W Syria, Turkey: (E Anatolia)
References:
Oak ICRA Checklist
Oaks of the World
Thursday
Quercus gambelii
Name: Quercus gambelii Nutt. (1847)
Synonyms:
Quercus albifolia C. H. Mull. (1942)
Quercus stellata var. utahensis A. DC. (1864)
Quercus gunnisonii Rydb. (1901)
Quercus submollis Rydb. (1901)
Quercus gambelii var. gunnisonii (Torr. & A. Gray) Wenz. (1884)
Quercus utahensis (A. DC.) Rydb. (1901)
Local Names:
Gambel's Oak
Rocky Mountain White Oak
Shin Oak
Utah White Oak
Range:
USA: (Arizona, Colorado, Nevada, New Mexico, Oklahoma, Texas, Utah, Wyoming), MEXICO: (Sonora, Chihuahua, Coahuila)
References:
Oak ICRA Checklist
Images
Wednesday
Quercus virginiana
Name: Quercus virginiana Mill. (1768)
Synonyms:
Quercus andromeda Riddell 1853
Quercus hemisphaerica hort. ex Endl. 1848
Quercus phellos var. obtusifolia Lam. 1785
Quercus phellos var. sempervirens Marshall 1785
Quercus sempervirens Walt. 1788, (not Mill.)
Quercus virens Ait. 1789
Quercus virginiana var. eximea Sarg. 1918
Local Names:
Range/Natural Distribution:
USA: (Alabama, Florida, Georgia (US), Louisiana, Missouri, North Carolina, South Carolina, Texas, Virginia)
References:
Oak ICRA Checklist
Oaks of the World
Tuesday
Quercus macrocarpa
Name: Quercus macrocarpa Michx. (1801)
Synonyms:
Quercus macrocarpa 'Oliviformis Hampteri' H. Jäger (1889)
Quercus macrocarpa 'Pannosa' H. Jäger (1889)
Quercus macrocarpa
var. oliviformis (F.Michx.) A.Gray 1856Quercus macrocarpa subsp oliviformis (F.Michx.) A.Camus 1935
Quercus macrophylla hort. not Née
Quercus oliviformis F.Michx. 1811
Quercus ramosa Booth
Local Names:
Range/Natural Distribution:
CANADA: (Manitoba, New Brunswick, Ontario, Quebeck, Saskatchewan), USA: (Alabama, Arkansas, Connecticut, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Michigan, Minnesota, Missouri, Montana, Nebraska, New York, North Dakota, Ohio, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Vermont, Virginia, Wisconsin, Wyoming)
References:
Oak ICRA Checklist
Oaks of the World
USDA Profile
Monday
Quercus acutissima
Name:
Quercus acutissima Carruth. (1862)
Synonyms:
Quercus acutissima var. depressinucata H. Wei Jen & R.Q.Gao 1984
Quercus acutissima var. septentrionalis Liou 1936
Quercus acutissima var. lioui Kozlov 1933
Quercus bombyx K.Koch 1873
Quercus castaneifolia Morrison
Quercus lunglingensis Hu 1951
Quercus serrata S. & Z. 1846 not Thunb. nor Carruthers
Quercus uchiyamana Nakai 1914
Local Names:
ma li
Range:
HIMALAYA: INDIA: (Arunachal Pradesh, Sikkim), NEPAL, BHUTAN, FAR EAST ASIA:
CHINA: (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hebei,
Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shaanxi, Shandong,
Shanxi, Sichuan, SE Xizang, Yunnan, Zhejiang), KOREA, JAPAN: (Honshu,
Shikoku, Kyushu), SOUTH EAST ASIA: N MYANMAR, LAOS
References:
Oak ICRA Checklist
Oaks of the World
Flora of China
Illustration
Thursday
Quercus lyrata
Name:
Quercus lyrata Walter (1788)
Synonyms:
Quercus bicolor var. lyrata (Walt.) Dippel 1891
Local Names:
Overcup Oak
Swamp Post Oak
Swamp White Oak
Water White Oak
White Oak
Range:
USA: (Alabama, Arkansas, Delaware, Florida, Georgia (US),
Illinois, Indiana, Kentucky, Louisiana, Maryland, Minnesota, Missouri,
New Jersey, North Carolina, Oaklahoma, South Carolina, Tennessee, Texas,
Virginia)
References:
Oak ICRA Checklist
Oaks of the World
Wednesday
Quercus coccifera
Name:
Quercus coccifera L. (1753)
Synonyms:
Quercus angustifolia (Laguna) Gonzalez-Albo 1936, not Sessé & Moç. 1894
Quercus arcuata Kotschy ex A.DC 1864
Quercus aucheri auctores, not Jaub. & Spach
Quercus brachybalanos Kotschy 1864
Quercus coccifera Tchich. 1860
Quercus coccifera subsp pseudococcifera (Desf.) Arcangeli 1882
Quercus inops Kotschy 1853
Quercus kermesiana hort.
Quercus kryptocarpa Svent. & Marcet
Quercus mesto Boiss.1842
Quercus pseudococcifera Desf.1799
Local Names:
Grain Oak
Kermes Oak
Range/Natural Distribution:
NORTH AFRICA: N Algeria , Libya, Morocco, Tunisia, EUROPE: Albania, Balearic Isles, Bosnia & Herzegovena, Bulgaria, France, Greece: (+Aegean Isles including Chios, Crete, Icaria, Karpathos, Rhodes), Italy, Macedonia, Portugal, Sardegna, Serbia, Sicilia, Spain, WEST ASIA: Cyprus, Israel, Jordan, Lebanon, Syria, Turkey: (European & W & S Anatolia)
References:
Oak ICRA Checklist
Oaks of the World
Image
Tuesday
Quercus suber
Name: Quercus suber L. (1753)
Synonyms:
Quercus bivonana Guss. 1844
Quercus occidentalis J.Gay 1856
Quercus suber var. occidentalis (J.Gay) Laguna 1883
Quercus suber subsp occidentalis (J.Gay) A.Camus 1938
Quercus subera St-Lag. 1880
Quercus suber var. crinita Pers. 1807
Local Names:
Cork Oak
Range:
NORTH AFRICA: N Algeria, Morocco, Tunisia, EUROPE: Corsica, France, SE Italy, Portugal, Sardegna, Sicilia, Spain
References:
Oak ICRA Checklist
Oaks of the World
Quercus suber tree image from UBC Botanical Garden
Monday
Quercus kelloggii
Name: Quercus kelloggii Newb. (1857)
Synonyms:
Quercus californica (Torr.) Cooper 1858
Quercus sonomensis Benth. ex A.DC 1864
Quercus tinctoria W. Bartram var. californica Torr. 1857
Local Names:
California black oak
Range:
USA: (California, SW Oregon)
References:
Oak ICRA Checklist
Oaks of the World
U.S. Forestry Service
Thursday
Quercus litseoides
Name: Quercus litseoides Dunn (1909)
Synonyms:
Cyclobalanopsis litseoides (Dunn) Schottky 1912
Local Names:
mu jiang ye quig gang
Range:
FAR EAST ASIA: CHINA: (SE Guangdong, SW Guangxi)
References:
Oak ICRA Checklist
Oaks of the World
Oaks of China
Illustration
Wednesday
Quercus sessilifolia
Name: Quercus sessilifolia Blume 1850
Synonyms:
Cyclobalanopsis sessilifolia (Bl.) Schottky 1912
Cyclobalanopsis nubium (Hand.-Mazz.) Chun ex Zheng 1982
Cyclobalanopsis paucidentata (Franch. ex Nak.) Kudo & Masamune 1930
Quercus paucidentata Franch. ex Nakai (1926)
Quercus nubium Hand.-Mazz. (1922)
Quercus chingii F. P. Metcalf (1931)
Local Names:
yun shan qing gang
Tsukubane-gashi
Range:
FAR EAST ASIA: CHINA: (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Zhejiang), JAPAN: (Honshu, Shikoku, Kyushu)
References:
Oak ICRA Checklist
Oaks of the World
Oaks of China
Illustration
Tuesday
Quercus petraea
Name: Quercus petraea (Matt.)Liebl. 1784
Synonyms:
petioleata Schur 1857
petraea var. laciniata (Lam.) C.Vicioso 1950
regalis Burnett ex Endl. 1848
robur var. laciniata Lam. 1785
robur var. platyphylla Lam. 1785
robur
sessilis Ehrh. ex Shur 1857
sphaerocarpa Vuk. in Schlosser 1876
sublobata Kitoibel 1814
Local Names:
Sessile Oak
Durmast Oak
Range:
EUROPE: S ALBANIA, AUSTRIA, BELGIUM, BOSNIA & HERZEGOVENIA,
BRITAIN, BULGARIA, CORSICA, CROATIA, CZECH REPUBLIC, DENMARK, ESTONIA,
FRANCE, GERMANY, HUNGARY, IRELAND, ITALY, LATVIA, LITHUANIA, MACEDONIA,
MOLDOVA, MONTENEGRO, THE NETHERLANDS, NORWAY, POLAND, ROMANIA, RUSSIA,
SERBIA, SICILIA, SLOVENIA, SLOVAKIA, C SPAIN, SWEDEN, SWITZERLAND, WEST ASIA: ARMENIA, AZERBAIJAN, GEORGIA (Asia), N IRAN, LEBANON, SYRIA, TURKEY: (European & NW Anatolia), UKRAINE
References:
Oak ICRA Checklist
Oaks of the World
Monday
Quercus turbinella
Name:
Quercus turbinella Greene 1889
Synonyms:
Quercus dumosa var. turbinella (Greene) Jepson 1895
Quercus dumosa subsp turbinella (Greene) E.Murray 1983
Quercus subturbinella Trel. 1924 (Camus = n° 182)
Local Names:
shrub live oak
turbinella oak
Sonorian scrub oak
California scrub oak
Range:
USA: (Arizona, California, Colorado, Nevada, New Mexico, Texas, Utah), MEXICO: (Baja California (Norte), Sonora, Chihuahua)
References:
Oak ICRA Checklist
Oaks of the World
Image: Plant
Image: Acorn and leaves
Image: Catkins (Male flowers)
Friday
Quercus chevalieri
Name:
Quercus chevalieri Hickel & A.Camus 1921
Synonyms:
Cyclobalanopsis chevalieri (Hickel & A.Camus) Hsu & Wei Jen 1993
Cyclobalanopsis nigrinux Hu 1951
Local Names:
hei guo qing gang
R ange:
China (Yunnan, Guangdong, Guangxi), Vietnam
References:
Oak ICRA Full Name Report
eFloras - Oaks of China
Oaks of the World
Illustration
Illustration
Thursday
Quercus austroglauca
Name:
Quercus austroglauca (Y.T.Chang)Y.T.Chang 1992
Synonyms:
Cyclobalanopsis austroglauca Y.T.Chang 1979
Local Names:
dian nan qing gang
Range:
China (S.E. Yunnan)
Conservation Status:
Rated as Endangered (EN) in the The Red List of Oaks
References:
Oaks of the World
Oak ICRA Checklist Full Name Report
eFlora.org - Chinese Plant Names
Illustration
Wednesday
Quercus longinux
Name: Quercus longinux Hyata 1911
Synonyms:
Cyclobalanopsis longinux (Hayata) Schottky 1912
Cyclobalanopsis longinux var. kuoi Liao
Cyclobalanopsis longinux var. pseudomyrsinifolia (Hayata) Liao 1971
glauca var. longinux (Hayata) Menitsky 1977
kanehirai Nakai
longinux var. kuoi (Liao) C.F Shen 1984
longinux var. kanehirai (Nakai) Liao 1970
pseudomyrsinifolia Hayata 1911
taichuensis Hayata 1911
Local Names:
chang guo qing gang
Range:
Taiwan
References:
Oak ICRA
eFloras
Oaks of the World
Illustration
Monday
Quercus jenseniana
Name:
Quercus jenseniana Hand.-Mazz. 1922
Synonyms:
Cyclobalanopsis jenseniana (Hand.-Mazz.) Cheng & Hong ex Q.F.Zheng 1982
Cyclobalanopsis pinbianensisY.C. Hsu & H.Wei Jen 1976
Quercus pinbianensis (Hsu & Wei Jen) Huang & Chang 1992
Lithocarpus jensenianus (Hand.-Mazz.) Chun & Metcalf 1942
Lithocarpus dunnii F.P.Metcalf 1931
Local Name:
da ye qing gang
Range:
SW and Central China (Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Yunnan, Zhejiang)
Additional Information:
Oaks of the World
The Plant List
Oak ICRA Checklist
Saturday
Weekedn Oak Art: Blemished
Colored pigment ink on 9"x12" Bristol Board. 2008. Mauldin Tree Farm
In the autumn of 2008, I picked up leaves from the road, on my walk along a tree preserve in Mauldin, South Carolina. I gathered enough leaf samples to draw at least a dozen illustrations. What attracted me most to these leaves were the uneven fall discolorations, blemishes, rot and tears. I thought such imperfections looked so beautiful. I called them Perfectly Imperfect. The scene on the left, was my Father-in-law's breakfast table which I converted to my temporary drawing desk. Not once did he ever complain. On a small cleared area of the table, he set his cereal bowl and ate his breakfast as we talked about family, his grandchildren, trees, chipmunks, birds and life in general, while I drew. The wooden bison seen on the table is one of the many hundreds of woodwork he has done throughout the years which includes furniture, spinning wheels, turned bowls, tools, hundreds of toys and wood carvings.
Friday
Quercus lamellosa
Cyclobalanopsis lamellosa (Sm.) Oerst. 1867
Cyclobalanopsis fengii Hu & Cheng 1951
Cyclobalanopsis nigrinervis Hu 1951
imbricata Buch- Ham. ex D.Don 1825
lamellata Roxb.1832
lamelloides (C.C. Huang) Y.T. Chang 1996
lamellosa var. nigrinervis (Hu) Zhou & Sun 1996
paucilamellosa A.DC 1864
Local names:
Buk oak; bao pian qing gang
Range:
Quercus lamellosa:
Thursday
Quercus chungii
Name:Quercus chungii F.P.Metcalf 1931
Synonym:
Cyclobalanopsis chungii (F.P.Metcalf) Y.C.Hsu & H.Wei Jen 1982
Local Name:
fujian qing gang
Range:
China (Fujian, Guangdong, Guangxi, Hunan, Jiangxi )
Growth Habit:
up to 15 meters high
Descriptions of Acorn:
Flora of China
Oaks of the World
References:
Oaks of The World
ICRA
Drawing
Flora of China
Wednesday
Quercus phanera
Quercus Phanera Chun 1947
Synonyms:
Cyclobalanopsis phanera (Chun) Hsu & Wei Jen 1979
basellata Chun & W.C.Ko 1958
insularis Chun & P.C.Tam 1965, nom. illeg. not Borzi 1911
Local Names:
liang ye qing gang
Range:
China (Guangxi, Hainan)
Description
Drawing
More Quercus phanera information:
eFloras
IPNI
Additional information and links on the genus Quercus:
Plants List: Quercus
Oaks of The World
Quercus images on Google
Oak images on Google
List of genus Quercus and subgenus Cyclobalanopsis
USDA Plant List Search: (Type Quercus)
eFlora - Quercus
Tuesday
Monday
Quercus stenophylloides
Quercus stenophylloides Hyata 1914
Synonyms:
Cyclobalanopsis stenophylloides (Hayata) Kudo & Masamune 1930
Cyclobalanopsis stenophylla (Bl.) Schottky var. stenophylloides (Hayata)Liao 1974
Quercus salicina var stenophylloides (Hayata) S.S.Ying 1988
Quercus stenophylla var. stenophylloides (Hayata) A.Camus 1938
Quercus salicina var. asiatica Shen in Shen & Liu 1984
Local Names:
Tai wan zhai ye qing gang
Image:
Illustration:
Oak information:
Range: Central and
Additional information and links on the genus Quercus:
Plants List: Quercus
Oaks of The World
Quercus images on Google
Oak images on Google
List of genus Quercus and subgenus Cyclobalanopsis
USDA Plant List Search: (Type Quercus)
eFlora - Quercus
Friday
Quercus kerrii
Name: Quercus kerrii Craib
Synonyms: Cyclobalanopsis kerrii (Craib) Hu 1940; dispar Chun & Tsiang 1947, nom. illeg.; vestita Rehd. & Wils. in Sarg. 1916 not
Griff. 1848
Local Names: mao ye qing gang
Growth Habit:
usually 7-8 m, but reaches
20 m
Acorn: acorn globose flattened, 0.7-1.3
cm high, 2-2.8 cm in diameter; apex flat or depressed; several on
a 4 cm long peduncle; slightly raised
basal scar, 1-2 cm wide; enclosed 1/4
to 1/2 by cup; cup flat, 0.5-1 cm de haut, 2-3.5 cm in diameter, with
bracts in 7-11 pubescent, entire or denticulate concentric rings; stylopodium
persistent, greyish pubescent; maturing in 1 year; (Oaks of The World)
Leaves: 10-24 x 3-8 cm; evergreen or
nearly so; leathery; oblong-elliptic, lanceolate or oblong-lanceolate;
margin apical 2/3 serrate; apex slightly obtuse to shortly acuminate;
base rounded or broadly cuneate; shiny green above, hairy beneath; midrib
weakly raised underside; 10-14 veins pairs; tertiary veins evident abaxially;
petiole tomentose 1-2 cm long; (Oaks of The World)
Range: SW China; Thailand; Vietnam; Myanmar; Laos
References:
eFlora
Oak ICRA Checklist
Illustration
The Plant List
Oaks of the World
International Plant Name Index
Point Map of Quercus kerrii
Culture Sheet
Additional information and links on the genus Quercus:
Plants List: Quercus
Oaks of The World
Quercus images on Google
Oak images on Google
List of genus Quercus and subgenus Cyclobalanopsis
USDA Plant List Search Page
eFlora - Quercus
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