herniaria glabra, bryum argenteum, capsella bursa-pastoris, ceratodon purpureus, erigeron canadensis, sagina procumbens, lepidium ruderale, medicago lupulina, plantago major, plantago media, poa annua, spergularia rubra, trifolium repens, tripleurospermum inodorum, juncus tenuis, lepidium campestre, leucanthemum vulgare, matricaria discoidea, potentilla argentea, rumex acetosella