lepidium draba, achillea millefolium, argentina anserina, erigeron canadensis, lolium perenne, polygonum aviculare, arenaria serpyllifolia, atriplex patula, berteroa incana, bromus hordeaceus, ceratodon purpureus, descurainia sophia, elymus repens, equisetum arvense, erodium cicutarium, matricaria chamomilla, medicago lupulina, pilosella officinarum, plantago major, poa annua, poa pratensis, reseda lutea, scorzoneroides autumnalis, tanacetum vulgare