Summer savory, an annual herb used commonly in Romanian cuisine. In Canada this is used often where sage might be used elsewhere. In France it is famously used in cooking young broad beans. It is slightly less bitter than winter savory, which is a perennial.
Woodland sorrel. Flowers, leaves and pods can be eaten and have quite a tangy flavour and are sometimes added to salads, or can be chewed as they are said to have thirst-quenching qualities. This has resulted in the leaves being used to make a lemony drink or it may be brewed as a herbal tea, though the flavour is a little dull. Apparently the juice can be used as a substitute for vinegar.
Crow garlic. A form of garlic which is more a weed than a culinary gift. It's aftertaste is relatively bitter, and it imparts a garlic flavour to the meat of animals which graze wehre it is prevalent. It is invasive in some areas.
Chickweed. A plant which grows wild near streams and on wasteland and may be eaten raw in salads, cooked in the same way as spinach or used to make soup.
