melilotus officinalis, melilotus albus, ambrosia artemisiifolia, cichorium intybus, cirsium arvense, convolvulus arvensis, elymus repens, erigeron canadensis, euphorbia seguieriana, falcaria vulgaris, medicago falcata, poa angustifolia, trifolium pratense, cyclachaena xanthiifolia, leonurus cardiaca, reseda lutea, tragopogon dubius