Quercus emoryi
Common name: 
Emory Oak
Black Oak
Blackjack Oak
kwer-KUS EMORY-i, eh-MOR-ee-eye
Native to (or naturalized in) Oregon: 
  • Evergreen tree, but drought deciduous, occasionally a shrub, slow growing to 65 ft (20 m) tall or more, rounded habit; trunk short, diameter may reach 75 cm.  Leaves simple, opposite, leathery, oblong-lanceolate, dark green, glossy, 4-7.5 cm long, apex acute or mucronate (with a small and abrupt tip), margin sharply toothed, holly-like but flat.  Fruit (acorn) short stalked, oblong, about 1.3-2 cm long, narrow at tip, rounded at base, cup encloses a third to half its length.
  • Sun.  Adaptable to various soils.  Needs periodic summer watering.
  • Hardy to USDA Zone 8      Native to Arizona, New Mexico, Texas and northwestern Mexico.
  • emoryi: after William H. Emory (1811-1887), who collected many new specimens during military reconnaissance of 1848, he later became director of the U.S.-Boundary Survey of 1857-59.
Click image to enlarge
  • plant habit

    plant habit

  • plant habit

    plant habit

  • leafy branches

    leafy branches

  • emerging shoot, catkins, and old leaves

    emerging shoot, catkins, and old leaves (S, Ruettgers)

  • leaves


  • leaf


  • leaves and maturing acorns

    leaves and maturing acorns

  • maturing acorn

    maturing acorn

  • trunk, bark

    trunk, bark