SorensonAndDamschen2019_SpeciesCodeKey

While collecting data we used a six-letter code system that typically is comprised of the first three letters of both the genus and specific epithet. Some codes do not match species names, but the names reported are the correct names. If species were identified only to genus, only the genus is reported with sp. For some large genera, we identified species into morphogroups within the genus. In this case, we used the first three letters of the genus followed by SP and a number. We used names from Radford, A. E., Ahles, H. E., & Bell, C. R. (1968). Manual of the vascular flora of the Carolinas. Univ of North Carolina Press. We checked spelling and current name usage using the R package taxize (Scott Chamberlain and Eduard Szocs (2013). taxize - taxonomic search and retrieval in R. F1000Research, 2:191. URL: http://f1000research.com/articles/2-191/v2.) using " iPlant_TNRS" as the source, unless otherwise noted.