poa annua, bromus tectorum, matricaria discoidea, medicago lupulina, arenaria serpyllifolia, bryum argenteum, capsella bursa-pastoris, ceratodon purpureus, chaenorhinum minus, cirsium arvense, erigeron canadensis, plantago major, rumex acetosella, sagina procumbens, spergularia rubra, trifolium repens, tripleurospermum inodorum, viola arvensis, geranium pusillum, hypochaeris radicata, lolium perenne, senecio viscosus