Mechanisms promoting non-self fertilization may have evolved to avoid inbreeding depression,
2.
The flowers are pollinated by insects ( usually bees, wasps and butterflies ) ( entomogamy ) and are hermaphrodite ( self fertilization or autogamy ).
3.
The " relationship " patterns include " sib crossing ", " cousin crossing " and " backcrossing " and are considered in a separate section . " Self fertilization " may be considered both from a spatial or relationship point of view.