Anthoxanthum mexicanum (Rupr. ex E. Fourn.) Mez Anthoxanthum mexicanum (Rupr. ex E. Fourn.) Mez in Repert. Spec. Nov. Regni Veg. 17(19–30): 291. 1921 sec. Espejo-Serna 2012=Hierochloe mexicana (Rupr. ex E. Fourn.) Benth. ex Hitchc. in Contr. U.S. Natl. Herb. 24(9): 614. 1930 syn. sec. ???