Buckthorn - Prunus Spinosa

[Momtezuma Tuatara]

Says here (http://www.archhill.co.nz/component/option,com_awiki/article,Prunus_spinosa/lang,en/view,mediawiki/) that it's naturalized here.

Anyone seen it?

[Mr. Beyondtheory]

Nope. I'd like to find if there is quickthorn here though.

[Seaweed]

I have seen a few similar looking small bushes out the back here but I have yet to see it flower or get fruit. They are definitely deciduous. I tend to ignore them, other than making sure I don't get spiked by the thorns, as they are in an area where they will get out competed by natives & they are not a particularly invasive noxious weed.