Syringa vulgaris 'Olivier De Serres'

Flower clusters large. Flowers large with broad outer and narrow, incurved inner lobes, lavender blue, darker in bud.

Lemoine, 1909.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Asteranae
order      Lamiales
family       Oleaceae
genus        Syringa L.
species         Syringa vulgaris L.