Hello!
Good question , in the Normandy region most of the trees seem to be of the leafy variety . In some areas like the Ardennes , it seems to be mostly , the pine variety.
But having said seem/seems , I would feel safe using either variety, depending on the time of year , though. Check your references , and on the net , I am sure you my find a site that deals with the plant life , trees , of the area , in which you are depicting your model /diorama Happy Modelling !
Frank
"PERSEVERANCE".