mono·car·pic /-ˈkɑrpɪk/
  Mon·o·car·pic Mon·o·car·pous a.  Bot. Bearing fruit but once, and dying after fructification, as beans, maize, mustard, etc.
  Note: ☞ Annual and biennual herbs are monocarpic, so also some plants of longer duration, as the century plant.
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  monocarpic
       adj : dying after bearing fruit only once