Accumulation curves of plant taxa identified from sampling 10,000 online advertisements A accumulation curve of all plant taxa identified. There were 1,777 taxa observed from 10,000 advertisements B accumulation curves of declared plant taxa identified. The red line represents a targeted sample that utilised search terms to locate declared plant advertisements and the blue line represents an untargeted sample that did not use search terms (i.e., random sampling). There were 155 declared taxa identified in 1,415 detections of declared plants.