The Collaborative International Dictionary of English v.0.48:

Abele \A*bele"\, n. [D. abeel (abeel-boom), OF. abel, aubel, fr.
   a dim. of L. albus white.]
   The white poplar (Populus alba).
   [1913 Webster]

         Six abeles i' the churchyard grow.       --Mrs.
                                                  Browning.
   [1913 Webster] Abelite
   Abelian

WordNet (r) 3.0 (2006):

abele
    n 1: a poplar that is widely cultivated in the United States;
         has white bark and leaves with whitish undersurfaces [syn:
         white poplar, white aspen, abele, aspen poplar,
         silver-leaved poplar, Populus alba]