It produces umbels of frothy white flowers in late spring providing an early nectar source for insects.. The flowers develop into long slender seed pods as shown in the photo above.
The leaves can stewed with tart fruit like gooseberries or rhubarb to reduce acidity. It can be used to flavour fish. in some countires it is used to flavour Schnapps.
The seeds can be dried and used as a spice or left on the plant to self seed.