Flower spikes are held erect and are typically terminal on a branch; often other branchlets grow up and around a spike from below. The fruiting structure is a stout woody "cone", around five centimetres (2 inches) in diameter, with a hairy appearance caused by the persistence of old withered flower parts. A "cone" may be embedded with up to 60 follicles, although usually there are very few or even none at all. Unusually for "Banksia", each follicle contains just one seed. This is shiny black, oval in shape, about 20 millimetres (¾ in) long, with a brown papery wing.