[bangk-see-uh] 
| any Australian shrub or tree of the genus Banksia, having alternate leaves and dense, cylindrical flower heads. |
| bank·si·a (bāngk'sē-ə) n. Any of various Australian evergreen shrubs or trees of the genus Banksia, having narrow, spiny or toothed leaves, showy, dense clusters of usually yellow flowers, and small fruits in conelike clusters. [After Sir Joseph Banks.] |
si