digitaria ischaemum, fallopia convolvulus, rumex acetosella, apera spica-venti, corynephorus canescens, holcus mollis, persicaria lapathifolia, persicaria maculosa, scleranthus annuus, secale cereale, spergula morisonii, viola arvensis, arabidopsis arenosa, arnoseris minima, chenopodium album, galinsoga parviflora, pinus sylvestris, teesdalia nudicaulis