Most users of manuals for identifying plants tend to avoid dichotomous keys whenever they can. But to wildly thumb through a book looking at pictures is not the best alternative. That is why I have chosen to offer a list of plant groups which can easily be separated from each other by clearly discernible vegetative traits common to all the species contained in the respective groups. In several cases, I have added synoptic or dichotomous keys in order to provide a better founded identification. This is the case e.g. in Cupressus, Eucalyptus, Nothofagus, Pinus, Populus, Prunus, Quercus.