Calla (zantedeschia albomaculata): This appears to be a hardy form of calla, but without seeing the flower, it's impossible to be sure. There are many spotted f…
White Spotted leaf Calla Lily (Zantedeschia albomaculata) in the Callas Database - Garden.org
Zantedeschia - Wikipedia
Albomaculata Calla Lily, Zantedeschia | American Meadows
CAUDICIFORM Zantedeschia albomaculata
Albomaculata Calla Lily | Holland Bulb Farms | 73151
Florist's White Calla Lily Bulb | Zantedeschia Albomaculata | High Country Gardens