trifolium repens, ceratodon purpureus, dactylis glomerata, agrostis capillaris, artemisia vulgaris, bromus hordeaceus, calamagrostis epigejos, lolium perenne, medicago lupulina, plantago lanceolata, poa compressa, arenaria serpyllifolia, carex arenaria, erigeron canadensis, rumex crispus