#oak_tree__oaktree__oak  a deciduous tree of the genus Quercus; has acorns and lobed leaves; "great oaks grow from little acorns"
  supertype:  #tree  a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
  part:  #acorn
  substance:  #oak
  member of:  #genus_Quercus
  subtype:  #live_oak  any of several American evergreen oaks
     subtype:  #coast_live_oak__California_live_oak__Quercus_agrifolia  highly variable often shrubby evergreen oak of coastal zone of western North America having small thick usually spiny-toothed dark-green leaves
     subtype:  #canyon_oak__canyon_live_oak__maul_oak__iron_oak__Quercus_chrysolepis  medium-sized evergreen of southwestern United States and northwestern Mexico with oblong leathery often spiny-edged leaves
     subtype:  #southern_live_oak__Quercus_virginiana  medium-sized evergreen native to eastern North America to the east coast of Mexico; often cultivated as shade tree for it wide-spreading crown; extremely hard tough durable wood once used in shipbuilding
     subtype:  #interior_live_oak__Quercus_wislizenii__Quercus_wizlizenii  medium-small shrubby evergreen tree of western North America similar to the coast live oak but occurring chiefly in foothills of mountain ranges removed from the coast; an important part of the chaparral
  subtype:  #white_oak__whiteoak  any of numerous Old World and American oaks having 6 to 8 stamens in each floret, acorns that mature in one year and leaf veins that never extend beyond the margin of the leaf
     subtype:  #American_white_oak__Quercus_alba  large slow-growing deciduous tree of the eastern United States having stout spreading branches and leaves with usually 7 rounded lobes; yields strong and durable hard wood
     subtype:  #Arizona_white_oak__Quercus_arizonica  semi-evergreen shrub or small tree of Arizona and New Mexico having acorns with hemispherical cups
     subtype:  #swamp_white_oak__swampwhiteoak__swamp_oak__swampoak__Quercus_bicolor  large flaky-barked deciduous oak of the eastern United States with leaves having fewer lobes than other white oaks; yields heavy strong wood used in construction; thrives in wet soil
     subtype:  #Oregon_white_oak__Oregon_oak__Garry_oak__Quercus_garryana  small deciduous tree of western North America with crooked branches and pale gray bark
     subtype:  #California_white_oak__valley_oak__valley_white_oak__roble__Quercus_lobata  tall graceful deciduous California oak having leathery leaves and slender pointed acorns
     subtype:  #bur_oak__buroak__burr_oak__mossy-cup_oak__mossycupoak__mossycup_oak__Quercus_macrocarpa  medium to large deciduous oak of central and eastern North America with ovoid acorns deeply immersed in large fringed cups; yields tough close-grained wood
     subtype:  #durmast__Quercus_petraea__Quercus_sessiliflora  deciduous European oak valued for its tough elastic wood
     subtype:  #common_oak__English_oak__pedunculate_oak__pedunculateoak__Quercus_robur  medium to large deciduous European oak having smooth leaves with rounded lobes; yields hard strong light-colored wood
  subtype:  #European_turkey_oak__turkey_oak__Quercus_cerris  large deciduous tree of central and southern Europe and Asia Minor having oblong-lanceolate leaves with spiked lobes
  subtype:  #scarlet_oak__scarletoak__Quercus_coccinea  medium-large deciduous tree with a thick trunk found in the eastern United States and southern Canada and having close-grained wood and deeply 7-lobed leaves turning scarlet in autumn
  subtype:  #jack_oak__northern_pin_oak__Quercus_ellipsoidalis  small to medium deciduous oak of east central North America; leaves have sharply pointed lobes
  subtype:  #red_oak__redoak  any of numerous American oaks having 4 stamens in each floret, acorns requiring two years to mature and leaf veins usually extending beyond the leaf margin to form points or bristles
     subtype:  #southern_red_oak__swamp_red_oak__swampredoak__turkeyoak__Quercus_falcata  large round-topped deciduous tree with spreading branches having narrow falcate leaves with deeply sinuate lobes and wood similar to that of northern red oaks; New Jersey to Illinois and southward
     subtype:  #northern_red_oak__Quercus_rubra__Quercus_borealis  large symmetrical deciduous tree with rounded crown widely distributed in eastern North America; has large leaves with triangular spiny tipped lobes and coarse-grained wood less durable than that of white oaks
     subtype:  #Shumard_oak__Shumard_red_oak__Quercus_shumardii  large deciduous red oak of southern and eastern United States having large 7- to 9-lobed elliptical leaves, large acorns and medium hard coarse-grained wood
  subtype:  #holm_tree__holm_oak__holly-leaved_oak__evergreen_oak__evergreenoak__Quercus_ilex  evergreen oak of southern Europe having leaves somewhat resembling those of holly; yields a hard wood
  subtype:  #shingle_oak__laurel_oak__Quercus_imbricaria  small deciduous tree of eastern and central United States having leaves that shine like laurel; wood is used in western states for shingles
  subtype:  #bluejack_oak__turkey_oak__Quercus_incana  small semi-evergreen shrubby tree of southeastern United States having hairy young branchlets and leaves narrowing to a slender bristly point
  subtype:  #California_black_oak__Quercus_kelloggii  large deciduous tree of the Pacific coast having deeply parted bristle-tipped leaves
  subtype:  #American_turkey_oak__turkey_oak__Quercus_laevis  small slow-growing deciduous shrubby tree of dry sandy barrens of southeastern United States having leaves with bristle-tipped lobes resembling turkey's toes
  subtype:  #laurel_oak__pin_oak__pinoak__Quercus_laurifolia  large nearly semi-evergreen oak of southeastern United States; thrives in damp soil
  subtype:  #overcup_oak__overcupoak__Quercus_lyrata  medium-large deciduous timber tree of central and southern United States; acorns deeply immersed in the cup and mature in first year
  subtype:  #scrub_oak  any of various chiefly American small shrubby oaks often a dominant form on thin dry soils sometimes forming dense thickets
     subtype:  #bear_oak__Quercus_ilicifolia  shrubby oak of southeastern United States usually forming dense thickets
     subtype:  #blackjack_oak__blackjackoak__blackjack__jackoak__Quercus_marilandica  a common scrubby deciduous tree of central and southeastern United States having dark bark and broad 3-lobed (club-shaped) leaves; tends to form dense thickets
     subtype:  #myrtle_oak__seaside_scrub_oak__seasidescruboak__Quercus_myrtifolia  small evergreen shrub or tree of southeastern United States; often forms almost impenetrable thickets in sandy coastal areas
  subtype:  #Japanese_oak__Quercus_mongolica__Quercus_grosseserrata  oak with moderately light fine-grained wood; Japan
  subtype:  #chestnut_oak  an oak having leaves resembling those of chestnut trees
     subtype:  #swamp_chestnut_oak__Quercus_michauxii  medium to large deciduous tree of moist areas of southeastern United States similar to the basket oak
     subtype:  #chinquapin_oak__chinkapin_oak__chinkapinoak__yellow_chestnut_oak__Quercus_muehlenbergii  medium-sized deciduous tree of the eastern United States that yields a strong durable wood
     subtype:  #basket_oak__cow_oak__cowoak__Quercus_prinus__Quercus_montana  medium to large deciduous tree of the eastern United States; its durable wood is used as timber or split and woven into baskets or chair seats
     subtype:  #dwarf_chinkapin_oak__dwarf_chinquapin_oak__dwarf_oak__dwarfoak__Quercus_prinoides  deciduous shrubby tree of northeastern and central United States having a sweet edible nut and often forming dense thickets
  subtype:  #water_oak__wateroak__possum_oak__Quercus_nigra  relatively tall deciduous water oak of southeastern United States often cultivated as a shade tree; thrives in wet soil
  subtype:  #Nuttall_oak__Nuttall's_oak__Quercus_nuttalli  similar to the pin oak; grows in damp sites in Mississippi River basin
  subtype:  #pin_oak__pinoak__swamp_oak__swampoak__Quercus_palustris  fast-growing medium to large pyramidal deciduous tree of northeastern United States and southeastern Canada having deeply pinnatifid leaves that turn bright red in autumn; thrives in damp soil
  subtype:  #willow_oak__Quercus_phellos  medium to large deciduous oak of the eastern United States having long lanceolate leaves and soft strong wood
  subtype:  #post_oak__box_white_oak__boxwhiteoak__brash_oak__iron_oak__Quercus_stellata  small deciduous tree of eastern and central United States having dark green lyrate pinnatifid leaves and tough moisture-resistant wood used especially for fence posts
  subtype:  #cork_oak__Quercus_suber  medium-sized evergreen oak of southern Europe and northern Africa having thick corky bark that is periodically stripped to yield commercial cork
  subtype:  #Spanish_oak__Quercus_texana  small deciduous tree having the trunk branched almost from the base with spreading branches; Texas and southern Oklahoma
  subtype:  #Chinese_cork_oak__Quercus_variabilis  medium to large deciduous tree of China, Japan, and Korea having thick corky bark
  subtype:  #black_oak__blackoak__yellow_oak__quercitron__quercitron_oak__Quercus_velutina  medium to large deciduous timber tree of the eastern United States and southeastern Canada having dark outer bark and yellow inner bark used for tanning; broad 5-lobed leaves are bristle-tipped

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