Quercus glandulifera
Common name: 
Konara Oak
Pronunciation: 
kwer-KUS gland-U-lif-er-a
Family: 
Fagaceae
Genus: 
Quercus
Synonyms: 
Quercus serrata
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Broadleaf deciduous tree, to 50 ft (15 m) tall; bark fissured.  Leaves alternate, simple, 6-15 cm long, oblong-obovate to ovate-lanceolate, tip acute, base rounded or wedge-shaped, margin has 7-12 pairs of gland-tipped (mucronate) triangular teeth, bright and glossy above, grayish below with appressed silky-pubescence; petiole 6-15 mm long.  Fall color mixed green, orange and red.  Fruit 1 or several on a short stalk, ripen in one season, acorn ovoid, about 1-1.5 cm long enclosed 1/3 by the cup.
  • Sun to part shade, tolerates many soil types.  
  • Hardy to USDA Zone 5      Native to Japan, Korea, and China.   Brought to North America in 1893 by Arnold Arboretum. Extremely rare in cultivation (Jacobson, 1996).
  • glandulifera: Latin, gland and ferre, to bear
  • Glen Ellen, California: Quarryhill Botanical Garden
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    leaves

  • leaf

    leaf

  • leaf, underside

    leaf, underside

  • trunk, bark

    trunk, bark