Tree would be arbre in french. For two and more trees, one simply adds an s, getting arbres.
un arbre
arbre
arbres
un châtaignier
Quel Bel Arbre
tree tops are in French "la cime des arbres"
Un arbre généalogique
olive tree
A pine tree is 'un pin' in French.
a tree surgon is called 'un élagueur' in French, from the verb: 'élaguer'.
cocottier
cet arbre-là
Sucre i think
un mûrier
erable arbre
un châtaignier
Quel Bel Arbre
un arbre généalogique
tree tops are in French "la cime des arbres"
Un arbre généalogique