wood sorrel is a sour-tasting plant, is indigenous to Ireland, and is trifoliated.
If you taste one of the wood sorrel leaves, you will find it is bitter but not unpleasant.
The same as to that dainty little flower, the wood–sorrel, which begins to open freely about the time that the anemones depart.
Another tiny flower is very much like mother's treasured pink oxalis; but is only the bloom of wood sorrel.