ballungsraum (by 1 person)

bochum (by 1 person)

botanik (by 1 person)

botany (by 1 person)

change of flora (by 1 person)

city flora (by 1 person)

conservation (by 1 person)

deutschland (by 1 person)

flora (by 1 person)

flora change (by 1 person)

flora dynamics (by 1 person)

flora of cities (by 1 person)

florendynamik (by 1 person)

florenwandel (by 1 person)

geobotanik (by 1 person)

geobotany (by 1 person)

germany (by 1 person)

metropolitan (by 1 person)

metropolitan area (by 1 person)

nature conervation (by 1 person)

naturschutz (by 1 person)

nordrhein-westfalen (by 1 person)

north rhine-westphalia (by 1 person)

ruhr area (by 1 person)

ruhrgebiet (by 1 person)

sippenzahl (by 1 person)

stadtflora (by 1 person)

stadtoekologie (by 1 person)

taxa accounts (by 1 person)

taxa statistics (by 1 person)

urban ecology (by 1 person)

urban flora (by 1 person)