Blackthorn (Prunus spinosa), also known as sloe, is a species of flowering plant in the rose family Rosaceae. It is native to Europe, western Asia, and locally in northwest Africa. It is also locally naturalised in New Zealand, Tasmania and eastern North America.
A blackthorn somewhat looks like a Blueberry.
Blackthorn flowers are white-coloured and have very big stamens and pistils which stick out of the flower petals.