Magnolia × thompsoniana (Cultivated- USA)

Magnolia ×thompsoniana de Vos, Ned. Fl. & Pomon. 131, T. 43. 1876 ; 
 
 
Magnolia x thompsoniana De Vos 
A hybrid between M. tripetala and M. virginiana with fragrant creamy-white flowers up to 15 cm across and elliptic leaves smaller in size than either parents. 
Photographed from SFO Botanical Garden, California.
 
  

References:

GRIN  The Plant List Ver.1.1  WCSP  Wikipedia  

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