scaberrima - Robuta Search

https://fsus.ncbg.unc.edu/main.php?pg=show-taxon.php&&plantname=Vernonia+angustifolia&limit=1&offset=2&taxonid=6565 Vernonia angustifolia var. scaberrima (Georgia Sandhill Ironweed) - FSUS vernonia angustifolia var scaberrima georgia