Complex sentence: The collection is famous for some of its trees and planets which are on the "danger" list and world recognized planets and trees like Persian Ironwood which is known in Dutch as "Perzische Parrotia".
Split into simpler sentences: The collection is famous for some of its trees and planets, some of which are on the "danger" list. Also well-known plants and trees can be found there, like the Persian Ironwood which are known in Dutch as "Perzische Parrotia".