Cuphea schumannii Koehne Cuphea schumannii Koehne in Bot. Jahrb. Syst. 29: 160. 1900 sec. Graham 2011=Parsonsia schumannii (Koehne) Standl. in Contr. U.S. Natl. Herb. 23(4): 1022. 1924 syn. sec. The Plant List 2013