Quercus robur Fagaceae
English Oak KWER-kus RO-ber
- Broadleaf deciduous tree, 40-60(100) ft [12-15(30) m] tall, often with a similar width, massive, rounded, short trunk. Leaves alternate, simple, obovate to obovate-oblong, 5-15 cm long, 3-6 pairs of deep rounded lobes, little "ear lobes" at the base of the blade (auriculate), dark green above, bluish green below, short petiole (4-8 mm long); fall color yellow and brown. Fruit (acorn) 2.5 cm, on a long stalk (5-10 cm), cap covers 1/3-1/4 of the nut.
- Sun, prefers well drained soil, pH tolerant.
- Hardy to USDA Zone 4 Native to Europe, north Africa, western Asia
- robur: ancient Latin name for strong, hard wood, especially oak.
- Oregon State Univ. campus: southwest corner of Ag. Strand Hall.