A diagram explaining the terms we used to define the different types of plant trade observations. This example shows two advertisements and two species of declared plant (plants prohibited to trade in a given jurisdiction). The number of observations for each term in this scenario are provided in parentheses. In the ‘prohibited jurisdiction’ there is one advertisement with two plant species, both species are prohibited to trade in this jurisdiction. One of these plant species is sold by itself in the ‘permitted jurisdiction’. In this case we refer to it as a declared plant, but it is permitted to trade in that jurisdiction.