Panicum haenkeanum J. Presl Panicum haenkeanum J. Presl, Reliq. Haenk. 1(4-5): 304. 1830 sec. Dávila & al. 2018=Panicum costaricense Hack. in Oesterr. Bot. Z. 51: 428. 1901 syn. sec. Dávila & al. 2006