A dark green, or variegated perennial herb with a slight sour flavor which comes from a high oxalic acid content. Sorrel is used in cream soups as well as an accompaniment to meats and vegetables. A French traditional version sorrel sauce is pureed and served over eggs or fish.
Sorrel is not typically found in grocery stores. Look for sorrel in your local farmer's market. It is quite easy to grow so if this green is a family favorite you may just want to grow your own.
The plant is a hardy perennial but may be treated as an annual depending on your location. Seeds should be planted mid-spring, about 1" apart in fertile, well-drained soil. In the fall you can cut the plants down to the crown and they will come back up the following year. You can purchase seed at Johnny's Selected Seeds. You can also purchase small plants at your local nursery in early Spring.