Difference between Arum Lily and Calla

ARUM LILY vs CALLA: NOUN

Any of several flowering plants, of the family Araceae, but especially Zantedeschia aethiopica, the calla lily that has a showy white spathe
The calla lily.
South African plant widely cultivated for its showy pure white spathe and yellow spadix

A South African marsh plant, Calla palustris, having pale green flowers in a white spathe.
A genus of plants, of the order Araceæ.
A plant of the allied genus Richardia, or, according to the latest authorities, Zantedeschia: the common calla of house-cultivation. It is often erroneously called calla-lily, from the lily-like appearance of its pure-white flowers.
A plant of the genus Calla.
[capitalized] A genus of araceous plants, of a single species, C. palustris, the water-arum, which occurs in cold marshes in Europe and North America.
A marsh plant (Calla palustris) of northern temperate regions, having small, densely clustered, greenish flowers partly enclosed in a spreading white spathe.
A calla lily.
South African plant widely cultivated for its showy pure white spathe and yellow spadix
Water arum

Stonecrop, Swamp milkweed, Allium, Hippeastrum, Rhizomatous, Bromeliad, Mullein, Asclepias, Pussy willow, Wood anemone, Kangaroo paw, Marsh marigold, Zantedeschia aethiopica, Calla, Calla lily

Marsh marigold, Ageratum, Cowslip, Strawflower, Sweet william, Ranunculus, Dendrobium, Trout lily, Stephanotis, Gerbera, Lily, Zantedeschia aethiopica, Genus calla, Arum lily, Calla lily

Monkshood, Stonecrop, Swamp milkweed, Allium, Hippeastrum, Rhizomatous, Bromeliad, Mullein, Asclepias, Pussy willow, Wood anemone, Kangaroo paw, Marsh marigold, Calla, Calla lily

Ajuga, Nemesia, Marsh marigold, Ageratum, Cowslip, Strawflower, Sweet william, Ranunculus, Dendrobium, Trout lily, Stephanotis, Gerbera, Lily, Arum lily, Calla lily

The tiny arum lily frog also uses the arum as an easy ambush to catch unsuspecting insects.