Pyrus calleryana 'Redspire'

Int. in 1975 by Princeton Nsy of New Jersey as a 'Bradford' seedling that has an earlier dormant period and larger but fewer flowers. Very susceptible to Fireblight. An American plant patent 3815.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Rosales
family       Rosaceae
genus        Pyrus L.
species         Pyrus calleryana Decne.