sentences:  "Banksia purdieana" is a bushy or column-shaped shrub that grows to high and up to wide but does not form a lignotuber.It has curved, broadly linear, pinnatipartite leaves that are long and wide with between four and seven triangular, sharply-pointed teeth on each side.The flowers are yellow and are arranged heads of about eighty with elliptical to linear involucral bracts up to long at the base of the head.