BANKSIAS IN FRED CATERSON RESERVE

by Jennifer Farrer

Banksia is a genus with 80 species in the Protea family. All species occur in Australia with one, Banskia dentata extending to the islands north of Australia. Banksias can be found in most environments – the tropics, sub-alpine areas, the coast and desert areas. The most diversity in the genus occurs in the south of Western Australia where over 80% of the species occur.

 

Joseph Banks and Daniel Solander collected the first botanical specimens of Banksias at Botany Bay in 1770. The Sydney Banksias flower in March to April so they were flowering when the Endeavour was here. The Banksia was a very exciting plant to these botanists as it proved the long-speculated link between conifers and flowering plants.

 

Banksia flowers are quite small but they occur in dense clusters of up to 1000 individual flowers. The flowers are followed by large woody seed ‘cones’ in which the seeds are contained in closed follicles. In most cases the follicles remain closed until stimulated to open by heat such as that following a bush fire. The seeds have a papery wing which allows them to be distributed by wind.

 

Most Banksias are medium shrubs, some are prostrate plants and a few can become large trees. Those species native to areas where bush fires occur regularly have a lignotuber, a woody swelling at or below ground level from which the plant can regenerate if the stems above the ground are destroyed.

 

There are four Banksia species in Fred Caterson Reserve:

BANKSIA SERRATA

Commonly called the Old Man Banksia because of its wrinkly bark. The seed cones are the Bad Banksia Men in May Gibbs books about the Gumnut Babies, Snugglepot and Cuddlepie. These Banksias grow into very large trees which can be long lived. There is a very large stand of them beside Field No 4.


BANKSIA ERICIFOLIA (Heath Banksia)

Banksia ericifolia can grow into a large tree in the right conditions. It has very large candles of flower clusters which are often deep orange.

BANKSIA OBLONGIFOLIA 

There is no common name for this very attractive shrub which has rusty hairs on the new growth and often on the mid vein of the leaves. The flowers are greenish yellow. 

BANKSIA SPINULOSA

The common name for this Banksia is Hairpin Banksia because the prominent styles of the flowers look like old fashioned hair pins. These plants occur in many areas in the Reserve