plantago major, poa pratensis, polygonum aviculare, medicago lupulina, scorzoneroides autumnalis, artemisia absinthium, artemisia vulgaris, cirsium arvense, erigeron annuus, erysimum cheiranthoides, galinsoga parviflora, lysimachia arvensis, oxalis stricta, sisymbrium loeselii, tripleurospermum inodorum