Report from the Oak ICRA checklist
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Full Name: - Quercus robur 'Contorta'

Quercus robur 'Contorta' C. de Vos, Sempervirens, 3: 302 (1874) as "Q. pedunculata contorta" Cultivar name has been accepted as Registered
Infrageneric Classification
Subgenus Quercus, section Quercus (the white oaks)
Synonyms in this Database
Quercus robur 'Cochleata' J. Makoy, (1874)
Main Horticultural References
(Krüssmann) Manual of Cultivated Broad-leaved Trees & Shrubs (in English) vol. 3 (1986) page 105
The New Royal Horticultural Society Dictionary of Gardening vol. 3 (1992) page 787
(Bean) Trees & Shrubs Hardy in the British Isles, 8th ed. vol. 3 (1976) page 508