be, arr. leuven, quercus rubra, potentilla indica, juncus tenuis, castanea sativa, prunus serotina, pilosella aurantiaca, ranunculus repens, rhododendron ponticum, urtica dioica, glechoma hederacea, impatiens parviflora, quercus robur, cardamine pratensis, silene coronaria, galinsoga quadriradiata, holcus lanatus, acer pseudoplatanus, fagus sylvatica, eupatorium cannabinum, claytonia perfoliata, oxalis stricta, geum macrophyllum, teucrium scorodonia, lamium galeobdolon, heracleum sphondylium, juncus effusus, epipactis helleborine, rumex obtusifolius, lathyrus latifolius, galanthus nivalis, agrostis capillaris, epilobium ciliatum, pentaglottis sempervirens, symphoricarpos albus, bidens frondosa, poa trivialis, circaea lutetiana, sorbus aucuparia, galeopsis tetrahit, fraxinus excelsior, geranium pyrenaicum, claytonia sibirica, robinia pseudoacacia, erigeron sumatrensis, plantago major, cirsium arvense, hyacinthoides non-scripta, geranium phaeum, sambucus nigra, corylus avellana