Trachyspermum ammi (L.) Sprague Trachyspermum ammi (L.) Sprague in Bull. Misc. Inform. Kew 1929: 228. 1929 sec. Watson 2011=Apium ammi (L.) Urb., Fl. Bras. 11(1): 341. 1879 syn. sec. The Plant List 2013