artemisia absinthium, bromus hordeaceus, ceratodon purpureus, artemisia campestris, centaurea stoebe, erigeron canadensis, potentilla argentea, achillea millefolium, anchusa officinalis, apera spica-venti, arrhenatherum elatius, artemisia vulgaris, berteroa incana, bromus tectorum, convolvulus arvensis, dactylis glomerata, medicago lupulina, poa angustifolia, sedum acre, tragopogon dubius, trifolium arvense, vicia hirsuta, medicago falcata