Horse chestnutA conker in a thick spiny husk
English oakAcorns on long stalks, often in pairs
SycamorePaired keys, wings set in a V
Common ashBunches of biscuit brown keys, held all winter
Common beechTriangular nuts, two to a prickly husk
Sweet chestnutDense ball of fine spines, usually three nuts
HazelNuts in a leafy husk their own length
HawthornRed haws, one pip in each
RowanFlat heads of scarlet berries from August
AlderSmall woody cones, on the tree year round
Field maplePaired keys with wings set in a line
Scots pineSlim greyish brown cones, two ages at once