text: silybum marianum, carduus pycnocephalus, medicago polymorpha, anthemis arvensis, avena barbata, bromus madritensis, bromus rigidus, cynosurus echinatus, erodium moschatum, hordeum murinum, rumex pulcher, sisymbrium officinale, urtica atrovirens, vicia sativa, arenaria leptoclados, hypochaeris glabra, hypochaeris radicata, papaver pinnatifidum, rumex acetosella, silene vulgaris