Complex sentence: The morphology of the genus "Pachypodium" varies greatly, with exception to the "Pachypodium rosulatum" aggregates, because it is highly responsive to its immediate surrounding microenvironment or "ecological coat" worn by an organism like a "Pachypodium" taxon.
Split into simpler sentences: The morphology of the genus "Pachypodium" varies significantly, with exception to the "Pachypodium rosulatum" aggregates. It is highly responsive to its immediate surrounding microenvironment, or "ecological coat" worn by an organism, like a "Pachypodium" taxon.