Salad burnet (Sanguisorba minor) is a native plant that is quite often grown as a culinary herb. It is perennial and robust.
The leaves taste a little bit of cucumber. To get nice juicy leaves, the plant needs quite a moist, rich soil otherwise they have a tendency to be bitter and dry. The plant is rich in tannins and generally astringent: the Sanguisorba part of the Latin name means “blood absorbing” and it has been used to staunch wounds, but mainly it is a culinary herb.