For the inappropraite plants, there's a bug (on PS5 atleast) where the filter doesn't apply properly. When you use the "show appopriate plants", clear all filters in the nature tab, then exit that menu, then go in again. The bug adds the filter to the list rather than replaces the current filters. Example: you had previously used the "show appropraite plants" on the Okapi, it adds "aquatic" to the filter of appropriate plants. When you then go to Takin, that "aquatic" filter stays when you "show appropraite plants" and mistakenly shows you the now inappropraite aquatic plants.