Re umeboshi

[J Lucas]

I am wondering if the most similar fruit we have in Britain are Damsons and
Bullace - very sour fruits of the prunus (plum) family. So sour they usually
have to be cooked to be palatable. FWIW

Joy

http://www.homeopathicmateriamedica.com
Dr Leela wrote
In India we have something called "Kokums". They grow in bunches on
tall trees and they are red, plum like fruits, with a couple of
central plum like seeds. They are "squishy", very sour but with a
sweetish after taste. When the fruit skin is dired (in the sun), they
are dark red/maroon. We use them in cooking (for the sour taste) and
as a digestive juice. ONE can buy Kokum Juice from most shops.
MAybe its the same thing you are refering to?