echinochloa crus-galli, equisetum ramosissimum, digitaria sanguinalis, geum urbanum, bromus catharticus, cymbalaria muralis, oxalis latifolia, erigeron canadensis, euphorbia peplus, geranium dissectum, helminthotheca echioides, impatiens balfourii, oxalis corniculata, pulicaria dysenterica, rubus ulmifolius, scrophularia auriculata, sonchus oleraceus, symphyotrichum squamatum