The length of time a flower remains open (i.e., from anthesis to flower senescence) is called floral longevity. Floral longevity is one of the most important reproductive traits, as it determines opportunities for pollen dispersal and capture of pollen by stigmas as well as the potential to influence intra pollinator foraging and opportunities for geitonogamous self-pollination.
Click here for original story, Global biogeographical patterns and correlates of floral longevity
Source: Phys.org