medicago littoralis, crepis bellidifolia, hordeum murinum, lagurus ovatus, plantago lanceolata, festuca fasciculata, silene sericea, silybum marianum, aetheorhiza bulbosa, anthemis arvensis, avena barbata, bromus rigidus, erodium cicutarium, euphorbia peplus, geranium molle, sporobolus pungens, trifolium cherleri