The Collaborative International Dictionary of English v.0.48:

Everlasting \Ever*last"ing\a.
   1. Lasting or enduring forever; exsisting or continuing
      without end; immortal; eternal. "The Everlasting God."
      --Gen. xx1. 33.
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   2. Continuing indefinitely, or during a long period;
      perpetual; sometimes used, colloquially, as a strong
      intensive; as, this everlasting nonsence.
      [1913 Webster]

            I will give to thee, and to thy seed after thee . .
            . the land of Canaan, for an everlasting possession.
                                                  --Gen xvii. 8.
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            And heard thy everlasting yawn confess
            The pains and penalties of idleness.  --Pope.

   Syn: Eternal; immortal, interminable; endless; never-ending;
        infinite; unceasing; uninterrupted; continual;
        unintermitted; incessant.

   Usage: -- Everlasting, Eternal. Eternal denotes (when
          taken strictly) without beginning or end of duration;
          everlasting is sometimes used in our version of the
          Scriptures in the sense of eternal, but in modern
          usage is confined to the future, and implies no
          intermission as well as no end.
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                Whether we shall meet again I know not;
                Therefore our everlasting farewell take;
                Forever, and forever farewell, Cassius. --Shak.
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   Everlasting flower. Sane as Everlasting, n., 3.

   Everlasting pea, an ornamental plant (Lathyrus
      latifolius) related to the pea; -- so called because it
      is perennial.
      [1913 Webster]

WordNet (r) 3.0 (2006):

everlasting flower
    n 1: any of various plants of various genera of the family
         Compositae having flowers that can be dried without loss of
         form or color [syn: everlasting, everlasting flower]