centaurea aspera, lagurus ovatus, avena sterilis, geranium rotundifolium, brassica nigra, carduus pycnocephalus, carex arenaria, crepis capillaris, dactylis glomerata, erodium cicutarium, hordeum murinum, lolium rigidum, medicago littoralis, papaver rhoeas, polycarpon tetraphyllum, trifolium scabrum