Possibly you want the Lancewood tree, Pseudopanax sp. This tree as a juvenile has leaves up to 500mm long and only15mm wide, but about age 20 +/- the leaves broaden and shorten. And the tree may commence to branch as well.
Perhaps half a dozen species or sub-species.
Rimu
answ2. This would be the lancewood, (Pseudopanax spp.) which has leaves over 40cm long, toothed at the margins, and conspicuously depressed.When the tree reaches about 5m high, the leaf shape changes to a shorter broader leaf. A New Zealand native tree with several species.
The leaves on an apple tree are alternately arranged on the branch, deciduous, simple, serrated, and unlobed ( no lobes).
Oaks Trees have spirally arranged leaves, with a lobed margin in many species; some have serrated leaves or entire leaves with a smooth margin.
Leaves of the eucalyptus tree, which is native to Australia.
older the tree is the longer the leaves
Black haw is a shrub or small tree with serrated oval leaves. Its white flowers and dark berries occur in clusters.
Anywhere that is their natural habitat or where man has planted them.
Sugar Palm (Borassus flabellifer): The National Tree of the Kingdom of Cambodi
phillipines purple leaves shrub
White ash is a serrated lobe because of the leaf and it isn't normally classified as smoothe leaf.
aspen