https://species.wikimedia.org/wiki/Platelicrinus_longispinus
Platelicrinus longispinus - Wikispecies
wikispecies
https://indiana.plantatlas.usf.edu/SpecimenDetails.aspx?CollectionID=148877
Cenchrus longispinus (Hack.) Fernald - USA, Indiana (Accession No: 56263) - IPA: Indiana Plant Atlas
The Indiana Plants Atlas is a source of data for the distribution of plants within the state as well as taxonomic, conservation, invasive, and wetland...
https://plants.ces.ncsu.edu/plants/cenchrus-longispinus/common-name/hedgehog-grass/
Hedgehog grass - Cenchrus longispinus | North Carolina Extension Gardener Plant Toolbox
north carolinaextension gardenerhedgehoggrasscenchrus