corynephorus canescens, arenaria serpyllifolia, ceratodon purpureus, elymus repens, erigeron canadensis, cerastium semidecandrum, draba verna, holcus lanatus, rumex acetosella, agrostis capillaris, apera spica-venti, bromus hordeaceus, bromus tectorum, calamagrostis epigejos, cirsium arvense, hypochaeris radicata, logfia minima, myosotis ramosissima, senecio vernalis, trifolium arvense, tripleurospermum inodorum, erodium cicutarium