matricaria chamomilla, echium vulgare, cirsium arvense, convolvulus arvensis, ambrosia artemisiifolia, capsella bursa-pastoris, carduus acanthoides, centaurea diffusa, chondrilla juncea, elymus repens, erigeron acris, euphorbia esula, lathyrus tuberosus, melilotus officinalis, onobrychis arenaria, picris hieracioides, poa angustifolia, sisymbrium loeselii, trifolium arvense, vicia cracca, artemisia santonicum, poa compressa