Navelwort (Pennywort), Umbilicus rupestris
Leaves are juice and delicious in salads or on sandwiches.
Blackthorn, Prunus spinosa
Messy-looking, dense, twiggy, spiny, spreading. Generally looks like a big bush rather than a tree. Can form impenetrable thickets. Can be surrounded by suckers. Hard to see any central trunk.
Water mint, Mentha aquatica
Grows between April and October. Usually found in marshes, meadows, damp woodland and by rivers and streams.
Common Hawthorn, Crataegus monogyna
Hedgerow shrub or small tree. Can be multi-stemmed or with single trunk.
Common Hornbeam, Carpinus betulus
A general upright character with densely packed, fine branches and a muscular trunk.
Common Hazel, Corylus avellane
It can often be no more than a shrub with multiple stems but can grow into a taller tree with bushy crown.