Oxyria digyna - Supplied by Incredible Vegetables
The genus name Oxyria, is Greek and means 'sour'. Rich in vitamin C this plant has been used to prevent and cure scurvy amongst the Inuit people.
From the buckwheat family (Polygonaceae)
Mix leaves into a larger salad - can be eaten raw or cooked giving a pleasant slightly sour taste, makes an excellent potherb and a very nice addition to salads.
The leaves can be fermented into a sauerkraut alongside white cabbages.
Video tutorial on how to make sauerkraut (simply add the sorrel at the same time as the cabbage):