tanacetum vulgare, achillea millefolium, melilotus albus, apera spica-venti, arenaria serpyllifolia, artemisia campestris, artemisia vulgaris, berteroa incana, brachythecium albicans, bromus tectorum, centaurea cyanus, ceratodon purpureus, cichorium intybus, convolvulus arvensis, daucus carota, delphinium consolida, echium vulgare, equisetum arvense, erigeron canadensis, medicago lupulina, medicago varia, melilotus officinalis, oenothera biennis, papaver rhoeas, poa angustifolia, poa compressa, roemeria argemone, rumex acetosella, sanguisorba officinalis, sedum acre, silene latifolia, solidago canadensis