"A Golfing Parody" joke

The season is upon us, and so that all you duffers out there are prepared, here's a little poem for you all to memorize and trot out as the need arises.
Trees: A Golfing Parody
I think that I shall never see
a hazard rougher than an tree;
A tree o'er which my ball must fly
if on the green it is to lie.
A tree which stands that green to guard,
and makes the shot extremely hard;
A tree whose leafy arms extend
to kill the six iron shot I send.
A tree that stands in silence there,
while angry golfers rave and swear.
Irons were made for fools like me
who cannot ever miss a tree.
(Author unknown, but with apologies to Joyce Kilmer)