Their cladogram contained clade a consisting of B. tricuspis (Lesueur banksia) and all of the taxa in George's B. ser.

Longistyles was based upon the second subclade:[1] B. violacea B. laricina B. incana B. tricuspis B. pulchella B. meisneri var.

Longistyles was formally defined as containing those taxa with very long and slender styles, and with smoothly convex perianth limbs without a costal ridge and with thickened margins.

Longistyles may be summarised as follows:[1] Thiele and Ladiges' arrangement remained current only until 1999, when George's treatment of the genus for the Flora of Australia series of monographs was published.

[3] Since 1998, Austin Mast has been publishing results of ongoing cladistic analyses of DNA sequence data for the subtribe Banksiinae.

[4][5][6] Early in 2007 Mast and Thiele initiated a rearrangement of Banksia by transferring Dryandra into it, and publishing B. subg.