There is no reliable ecological or biological method that can distinguish between aliens and natives

In the world of native plant advocates, deciding which plants are native and which are alien (non-native) determines which plants live and which plants die.  Additional protection is afforded plants defined as “sensitive species”.  Sensitive species designation should be limited to plants identified by Federal and State statutes on Endangered Species.  Instead, private organizations such as local chapters of the Audubon Society, California Native Plant Society, and the Sierra Club have been allowed in the NAP to define which plants are native, and which are “sensitive species”.  These groups are not scientific organizations, nor are they democratic.  Ultimately, these decisions are made by a handful of hobbyists and activists.  Their decisions will result in families and their pets losing access to almost a thousand acres of park property.