Ock Tree
There are lots of Ock Trees in South Africa. When I first saw them in Johannesburg, I thought they are only in there, but aftee we moved in Cape Town, I found them everywhere.
And I asked to someone who is South African and he said they planted for mking wine barrels.
I know Korean will be ctazy to pick and make food out of it.
Upvoted! Thank you for supporting witness @jswit.