Banksia ser. Tetragonae
# Banksia ser. Tetragonae

Banksia ser. Tetragonae is a taxonomic series in the genus Banksia. It consists of three closely related species of erect shrub with pendulous inflorescences in section Banksia. These are:

| Scientific name | Distribution |
| - | - |
| B. lemanniana (Lemann's banksia) | Western Australia |
| B. caleyi (Cayley's banksia) | Western Australia, from South Stirling to the West River and northeast to Pingrup |
| B. aculeata (prickly banksia) | Stirling Range in the southwest of Western Australia |
