corynephorus canescens, rumex acetosella, bromus tectorum, petrorhagia prolifera, silene vulgaris, aphanes microcarpa, arabidopsis thaliana, barbarea verna, cerastium semidecandrum, draba verna, echium vulgare, myosotis stricta, scleranthus perennis, senecio vulgaris, trifolium arvense, veronica arvensis, vicia lathyroides