lv, latgale, elymus repens, pinus sylvestris, picea abies, polygonum aviculare, lactuca serriola, populus tremula, ambrosia artemisiifolia, acer platanoides, poa angustifolia, betula pubescens, convolvulus arvensis, quercus robur, plantago major, sorbus aucuparia, grindelia squarrosa, betula pendula, chenopodium album, crepis tectorum, cirsium arvense, dryopteris carthusiana, achillea collina, phragmites australis, urtica dioica, erigeron canadensis, bromus tectorum, calamagrostis epigejos, artemisia absinthium, ballota nigra, chelidonium majus, fraxinus excelsior, galium aparine, potentilla argentea, cyclachaena xanthiifolia, achillea millefolium, euphorbia seguieriana, geum urbanum, rhododendron tomentosum, vaccinium myrtillus, maianthemum bifolium, centaurea diffusa, atriplex tatarica, delphinium consolida, convallaria majalis, capsella bursa-pastoris, vaccinium vitis-idaea, artemisia austriaca, acer negundo, bromus squarrosus, festuca valesiaca, corylus avellana