"I got to travel around quite a lot, [and] a lot of that time was [spent] fishing, camping and learning [about] what people used to eat or use as medicine before colonisation,"Mr Doyle said.
"I started giving it away to family and friends, and of course, they started giving it away [and] people started asking for it,"he said.
"On my guided tours now I'm trying to give the scientific name, then the common name, [and] then try and add the Aboriginal traditional language name."
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