Their cladogram contained a clade that corresponded closely to George's B. ser.

Leptophyllae in Thiele and Ladiges' arrangement 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, which suggest a phylogeny that is rather different from previous taxonomic arrangements.

caesia together form a clade, but B. grossa appears more closely related to the members of Thiele's B. subser.

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

All members of subseries Sphaerocarpae fall within Mast and Thiele's B. subg.

Mast and Thiele have foreshadowed publishing a full arrangement once DNA sampling of Dryandra is complete.