The Collaborative International Dictionary of English v.0.48:

Raffia palm \Raf"fi*a palm\ (r[a^]f"f[i^]*[.a] p[aum]m`).
   (a) A pinnate-leaved palm (Raphia ruffia) native of
       Madagascar, and of considerable economic importance on
       account of the strong fiber (raffia) obtained from its
       leafstalks.
   (b) The jupati palm.
       [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

raffia palm
    n 1: a large feather palm of Africa and Madagascar having very
         long pinnatisect fronds yielding a strong commercially
         important fiber from its leafstalks [syn: raffia palm,
         Raffia farinifera, Raffia ruffia]