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Cape Banks

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Cape Banks

SERIES 21 | Episode 29


Clarence is exploring a plant community known as Eastern Suburbs Banksia Scrub (ESBS). It's located on the north side of the entrance to Botany Bay, close to where Captain Cook and Sir Joseph Banks landed about 240 years ago. Banks was delighted to come across plants he'd never seen before, such as wattles, eucalypts, xanthorrhoeas and banksias.

Around 1770 this unique community of plants covered about 5,300 hectares of coastal land, all the way around Port Jackson. Now, with only 1% remaining, it's listed as endangered.

The soil of ESBS is known as the 'last of the deep sands' - and was deposited over 100 thousand years ago. With so many years of rain and wind leaching nutrients from the soil, only the toughest plant species survive here because adapted to the conditions.


Banksia

An example of a well-adapted plant is the banksia. One of the local species is the Coast Banksia (Banksia integrifolia). Clarence explains that aboriginal people in the area had many uses for this plant. "Nectar from flowers was used to make a sweet drink. The cones were used to carry fire from one place to another because they burn for a long time. And the timber has a really nice grain for making artefacts - things like clap sticks, woomeras and boomerangs.

The dried cones of Banksia ericifolia, known commonly as Heath Banksia, were used by women as hairbrushes.


Acacia

With over 1000 acacia species, it's no surprise that the ESBS has its fair share. Clarence finds a Sydney Golden Wattle (Acacia longifolia) and explains that the seed of this, and other acacias, can be ground into flour and used to make flat bread or damper. "Some of the sap can even be used as a medicine or a sweet lolly."


Common Heath

The Epacris impressa is a small growing shrub to about 3m. They're becoming very popular in home gardens and Clarence reckons "they're dead easy to grow!"


Grass Tree

One of the more spectacular plants in the ESBS is the xanthorrhoea. The sap of one species, the Xanthorrhoea resinifera is very similar to resin. Clarence explains that it is easy to collect because it's emitted from flower spikes after rain, or it can be extracted from trunks. "It sets hard just like resin and can be used for fixing holes in canoes and spear heads, or attaching tips to woomeras."

Clarence says, "I can't emphasise enough the diversity and the richness of plants here. As well as the xanthorreas and banksias, there are things like Isopogon, hakeas, grevilleas, styphelias and Allocasuarina.

"Although we've only looked at a small portion of some of the plants here in the Eastern Suburbs Banksia Scrub, with only 1% remaining, it's a really important area that needs to be looked after."

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Gardening, Native Species, Plants, Gardens and Site Elements