Calla (zantedeschia) is a genus of herbaceous flowering plants in the family Araceae, native to southern Africa from South Africa north to Malawi. 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 nor Calla (related genera in Araceae). The Zantedeschia are rhizomatous herbaceous perennial plants growing to 1-2.5 m tall with leaves 15-45 cm long. The inflorescence is a showy white, yellow or pink spathe shaped like a funnel with a yellow, central, finger-like spadix.
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