Turnera ulmifolia L. Turnera ulmifolia L., Sp. Pl. 1: 271. 1753 sec. Gama & al. 1985=Turnera velutina C. Presl, Reliq. Haenk. 2: 44. 1831 syn. sec. ???=Turnera alba Liebm. in Ann. Sci. Nat., Bot., sér. 3, 9: 318. 1848 syn. sec. The Plant List 2013