Overcup Oak (Quercus lyrata) | View Observations
Quercus lyrata (overcup oak) is an oak in the white oak group (Quercus sect. Quercus). It is native to lowland wetlands in the eastern and south-central United States, in all the coastal states from New Jersey to Texas, inland as far as Oklahoma, Missouri, and Illinois. There are historical reports of it growing in Iowa, but the species appears to have been extirpated there.
Other Names: Dub Lyrovitý, Swamp Post Oak
Valley Oak (Quercus lobata) | View Observations
Quercus lobata, commonly called the valley oak or roble, grows into the largest of North American oaks. It is endemic to California, growing in interior valleys and foothills from Siskiyou County to San Diego County. Mature specimens may attain an age of up to 600 years. This deciduous oak requires year-round access to groundwater.
Other Names: Quercus lyrata, 加州白栎, Kalifornische Weißeiche, Sheveh, Roble, Encino del Valle
