poa bulbosa, potentilla argentea, arenaria serpyllifolia, cirsium arvense, arabidopsis thaliana, convolvulus arvensis, erigeron acris, trifolium arvense, veronica arvensis, allium vineale, alyssum alyssoides, artemisia absinthium, artemisia campestris, bromus tectorum, centaurea cyanus, clinopodium acinos, erysimum rhaeticum, filago arvensis, scleranthus annuus, trifolium pratense, trifolium repens, veronica hederifolia, veronica praecox, viola arvensis, achillea virescens, bupleurum rotundifolium, festuca valesiaca, tragopogon dubius