Report from the Oak ICRA checklist
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Full Name: - Quercus ×alvordiana

Quercus ×alvordiana Eastw. (1905)
Infrageneric Classification
Subgenus Quercus, Section Quercus
Q. douglasii Hook. & Arn. × Q. john-tuckeri Nixon & C. H. Mull.
See: Nixon, Volume 3 of Flora of North America (1997) Page 490
Natural Distribution
USA: (California)
Illustration of Leaves
Image from stockplant at Pavia Nurseries (Belgium) ©Jan De Langhe, Ghent University Botanical Garden, 2010
Recent Monograph References
(Miller & Lamb) Oaks of North America (1985) page 226, 270 mentions as Q. douglasii × Q. turbinella
(Hard˙ & Lamant) Guide illustré des Chęnes (2006) Volume 2, page 312