Some time ago I was discussing the presence of a native australian hop species with a friend of mine who studies the botanical flora distribution specific to the Sydney basin region. The genus Dodonaea was mentioned, because of it's common name of 'hop bush'.
Sources on the internet vary, but the Australian National Botanic Gardens site has this to say about Dodonaea viscosa:
a member of the Sapindaceae family. Dodonaeas are known as hop bush as they were used to make beer by early European Australians. Dodonaea viscosa has also been traditionally used by Aboriginal Australians to treat toothache, cuts and stingray stings.
The website anpsa.org.au also has this to say about Dodonaea viscosa:
Both Aborigines and colonists valued hop bushes for their cultural and medicinal properties.
So impressed were the early colonists with the similarity in looks and taste, which its winged seed capsules had to hops, they were inspired to successfully brew a tangy, bitter but drinkable beer. The name 'Hop bush' still remains its popular common name.
SOURCES:
http://www.anbg.gov.au/gnp/interns-2007/do...ea-viscosa.html
http://anpsa.org.au/APOL2007/feb07-2.html