Bougainvillea spectabilis 'Barbara Karst'

Bracts red and extending along the branches.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Caryophyllanae
order      Caryophyllales
family       Nyctaginaceae
genus        Bougainvillea Juss.
species         Bougainvillea spectabilis Willd.