Zantedeschia

Said by Wiki:

The name of the genus was given as a tribute to Italian botanist Giovanni Zantedeschi (1773?1846) by the German botanist Kurt Sprengel (1766?1833).
Common names include arum lily for Z. aethiopica,
calla, and calla lily for Z. elliottiana and Z. rehmannii although it is neither a true lily (Liliaceae), nor Arum or Calla .
It is also often erroneously spelled as "cala lily". It has often been used in many paintings, and is visible in many of Diego Rivera's works of art (see The Flower Vendor, amongst others).

Here is an image of The Flower Vendor, by Diego Rivera.

My image shows a wonder of nature - the spadix - close-up.