Fieldwork conducted on the Konza Prairie Research Natural Area (KPRNA) over the past several years has yielded a number of vascular plants previously unreported from the research site. The following list is provided as an addendum to the annotated list of vascular plants of KPRNA. These additions bring the number of species, genera, and families known from KPRNA to 467, 289, and 93, respectively. Continued research on Konza may reveal additional new taxa, however, the number of new reports would undoubtedly be few. Most of the taxa reported herein are weedy species or rare natives