gb, hertfordshire, galium aparine, pteridium aquilinum, rubus fruticosus, hedera helix, urtica dioica, quercus robur, crataegus monogyna, cirsium arvense, corylus avellana, fraxinus excelsior, hyacinthoides non-scripta, lonicera periclymenum, holcus lanatus, fagus sylvatica, heracleum sphondylium, betula pubescens, betula pendula, ilex aquifolium, dactylis glomerata, mercurialis perennis, ranunculus repens, quercus petraea, geum urbanum, dioscorea communis, viola riviniana, agrostis capillaris, arrhenatherum elatius, geranium robertianum, acer pseudoplatanus, stellaria media, arum maculatum, prunus spinosa, poa trivialis, dryopteris filix-mas, sambucus nigra, teucrium scorodonia, trifolium repens, rabelera holostea, ulex europaeus, castanea sativa, plantago lanceolata, cerastium fontanum, lysimachia arvensis, sorbus aucuparia, plantago major, dryopteris dilatata, avenella flexuosa, calluna vulgaris, achillea millefolium, brachypodium sylvaticum