nl, agglomeratie leiden en bollenstreek, carex arenaria, luzula campestris, festuca filiformis, calamagrostis epigejos, agrostis capillaris, jacobaea vulgaris, rumex angiocarpus, rumex acetosella, aira praecox, cerastium semidecandrum, poa pratensis, galium verum, veronica officinalis, veronica arvensis, senecio sylvaticus, koeleria macrantha, viola tricolor, rubus caesius, erodium cicutarium, festuca rubra, cynoglossum officinale, holcus lanatus, myosotis ramosissima, corynephorus canescens, cerastium arvense, anthoxanthum odoratum, viola canina, hypochaeris radicata, agrostis vinealis, cardamine hirsuta, thymus pulegioides, lotus corniculatus, salix repens, vicia lathyroides, phleum arenarium, pilosella officinarum, urtica dioica, geranium molle, sedum acre, quercus robur, crataegus monogyna, galium mollugo, cerastium holosteoides, avenula pubescens, danthonia decumbens, cirsium arvense, carex trinervis, hippophae rhamnoides, draba verna, teesdalia nudicaulis