echium vulgare, trifolium arvense, ceratodon purpureus, chondrilla juncea, rumex acetosella, erigeron canadensis, erodium cicutarium, medicago minima, brachythecium albicans, bryum argenteum, elymus repens, festuca trachyphylla, petrorhagia prolifera, senecio vernalis, artemisia campestris, berteroa incana, centaurea stoebe, falcaria vulgaris, helichrysum arenarium, setaria viridis