| Banksia subg. Isostylis | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Banksia |
| Subgenus: | Banksia subg. Isostylis R.Br. |
| Species | |
Banksia subg. Isostylis is a subgenus of Banksia. It contains three closely related species, all of which occur only in Southwest Western Australia. Members of subgenus Isostylis have dome-shaped flower heads that are superficially similar to those of B. ser. Dryandra, but structurally more like reduced versions of the "flower spikes" characteristic of most other Banksia taxa.
There are three species of Banksia subg. Isostylis, B. ilicifolia (holly-leaved banksia), B. cuneata (matchstick banksia) and B. oligantha (Wagin banksia). B. ilicifolia is widely distributed and relatively common, but the other two species are rare and threatened.