Robuta

https://fsus.ncbg.unc.edu/main.php?pg=show-taxon-detail.php&lsid=urn:lsid:ncbg.unc.edu:taxon:%7BE992711A-429B-4CD4-A305-210191D24CA8%7D Cyperus polystachyos (Coast Flatsedge) - FSUS cyperus coast