text: symphyotrichum pilosum, artemisia verlotiorum, arundo donax, urtica dioica, amaranthus retroflexus, bidens subalternans, bromus catharticus, chelidonium majus, chenopodium album, erigeron sumatrensis, euphorbia helioscopia, helminthotheca echioides, mercurialis annua, oxalis corniculata, paspalum dilatatum, rubus caesius, rumex crispus, solidago altissima, stellaria media