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