gb, hertfordshire, ilex aquifolium, hedera helix, fagus sylvatica, hyacinthoides non-scripta, quercus robur, lonicera periclymenum, pteridium aquilinum, fraxinus excelsior, rubus fruticosus, crataegus monogyna, betula pubescens, dryopteris dilatata, corylus avellana, oxalis acetosella, mercurialis perennis, quercus petraea, acer pseudoplatanus, sorbus aucuparia, betula pendula, circaea lutetiana, urtica dioica, geum urbanum, arum maculatum, galium aparine, dryopteris filix-mas, rabelera holostea, taxus baccata, viola riviniana, castanea sativa, geranium robertianum, avenella flexuosa, primula vulgaris, anemone nemorosa, sambucus nigra, primula acaulis, carex sylvatica, veronica montana, brachypodium sylvaticum, rhododendron ponticum, holcus mollis, deschampsia cespitosa, melica uniflora, deschampsia flexuosa, prunus avium, athyrium filix-femina, digitalis purpurea, euphorbia amygdaloides, carex remota, lysimachia nemorum, milium effusum