cerastium arvense, elymus repens, arabidopsis thaliana, convolvulus arvensis, galium verum, lactuca serriola, poa angustifolia, allium vineale, capsella bursa-pastoris, dactylis glomerata, descurainia sophia, euphorbia helioscopia, pimpinella saxifraga, potentilla argentea, roemeria argemone, viola arvensis, arrhenatherum elatius