nl, agglomeratie leiden en bollenstreek, calamagrostis epigejos, carex arenaria, cerastium semidecandrum, cynoglossum officinale, rubus caesius, poa pratensis, sedum acre, jacobaea vulgaris, luzula campestris, hippophae rhamnoides, galium verum, festuca rubra, koeleria macrantha, urtica dioica, myosotis ramosissima, veronica arvensis, erodium cicutarium, phleum arenarium, solanum dulcamara, salix repens, galium mollugo, thymus pulegioides, festuca filiformis, ligustrum vulgare, aira praecox, cirsium arvense, draba verna, saxifraga tridactylites, cardamine hirsuta, corynephorus canescens, senecio sylvaticus, viola tricolor, cerastium arvense, lotus corniculatus, elymus repens, holcus lanatus, geranium molle, claytonia perfoliata, senecio vulgaris, sonchus arvensis, veronica officinalis, arenaria serpyllifolia, cirsium vulgare, agrostis stolonifera, phragmites australis, bryonia dioica, hypochaeris radicata, agrostis capillaris, cerastium holosteoides, rumex acetosella