Report from the Oak ICRA checklist
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Full Name: - Quercus ×bushii 'Seattle Trident'

Quercus ×bushii 'Seattle Trident' J. Hillier & Coombes in Hillier Man. Trees Shrubs Ed. 7, 249 (2002) Cultivar name has been accepted as Registered
Infrageneric Classification
Subgenus Quercus, Section Lobatae
Q. marilandica Münchh. × Q. velutina Lam.
Full description: Sally A. Scott & Allen Coombes. Quercus ×bushii 'Seattle Trident' - A New Cultivar of Hybrid Red Oak. Washington Park Arboretum Bulletin. Winter 2003. 6-11. (2003)
Nomenclatural Standard (Cultivar) or Type
Harold Hillier Herbarium 202 HILL
Standard Image
Photograph by Brian Pancott for the Sir Harold Hillier Gardens
Main Horticultural References
The Hillier Manual of Trees & Shrubs, 7th ed. (2002) page 249