Where can I buy a plant of Chinese Hawberry?
 

Does anybody know a nursery source in Australia for the shrub
Crataegus pinnatifida major - Chinese Hawberry or Chinese Hawthorn?

I am assuming, of course, that it is not counted as a quarantine weed.

The shrub is related to the ordinary Hawthorn (or May, as it is known
in Britain) that certainly grows in hedgerows in the Southern
Highlands of NSW. It has pea-sized berries that only birds bother to
eat.

The Chinese Hawthorn on the other hand has humanly edible fruits about
20 cm long - the size of small olives. You can buy them bottled in
syrup in Sydney's Haymarket stores with Chinese produce.