 In George 's 1981 arrangement , B. violacea was placed in subgenus Banksia because its <unk> is a typical Banksia " flower spike " ; section Oncostylis because of its hooked styles ; and series Abietinae because its <unk> is roughly spherical . It was placed in taxonomic sequence between B. incana ( <unk> Banksia ) and B. <unk> ( <unk> 's Banksia ) . 
