Synonyms recognized by ITIS (bold taxon is currently accepted):

     Crotalaria sagittalis L.
     Crotalaria sagittalis var. blumeriana Senn
     Crotalaria sagittalis var. fruticosa (P. Mill.) Fawcett & Rendle
     Crotalaria sagittalis var. oblonga Michx.

Common Name(s): arrow crotalaria, arrowhead rattlebox.

Taxonomic Hierarchy: (ITIS TSN=26579, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Rosidae
                            Order: Fabales
                                Family: Fabaceae
                                    Genus: Crotalaria
                                        Species: Crotalaria sagittalis