For flowering plants to reproduce, pollen from one flower must reach the pistil, or female part, of another, and to this end many varied and beautiful pollen grains have evolved.
(flowering plants; to reproduce; ) (pollen from one flower; must reach; the pistil, or female part) (many varied and beautiful pollen grains; have evolved; T:to this end)
flowering plants pollen from one flower many varied and beautiful pollen grains
to reproduce must reach have evolved
the pistil, or female part
T:to this end