Julian A. Steyermark’s Flora of Missouri published in 1963, set a level for floras which few other floras have been able to equal either before or since. The work was so thorough that for a quarter of a century, it stifled any botanists to try to even update it. But things eventually change with time, and with the renewed activity of Missouri botany within the last decade by the Missouri Native Plant Society, the Missouri Department of Conservation, and the Missouri Department of Natural Resources, many new discoveries have been made, particularly in remote parts of Missouri where the late Steyermark had not even visited.