The scientific name of arum lilies is Zantedeschia.
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Yes.
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An arum lily is any of a variety of flowering plants of the
genus Araceae, especially Zantedeschia aethiopica, the calla lily,
which has a showy white spathe.
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The proper name for is Zantedeschi but these flowers are also
commonly named Arum Lily or Calla and Cally Lily. It is neither a
true Lily nor Arum or Calla. It is also often erroneously spelled
as "cala lily"