heterogamous
het.er.og.a.mous \.het-*-'ra:g-*-m*s\ \-me-\ aj : exhibiting or characterized by diversity in the reproductive elements o r processes : as : characterized by fusion of unlike gametes; esp : OOGAMOUSM : exhibiting alternation of generations in which two kinds of sexual gen eration alternate : bearing flowers of two kinds - het.er.og.a.my n