calla vs calla lily

calla and calla lily both are nouns.

Word	Noun	Adjective	Verb	Adverb
calla	Yes	No	No	No
calla lily	Yes	No	No	No

As nouns, calla and calla lily are synonyms defined as:

calla and calla lily: South African plant widely cultivated for its showy pure white spathe and yellow spadix

Other synonyms of calla include arum lily, Zantedeschia aethiopica.

calla (noun)	calla lily (noun)
South African plant widely cultivated for its showy pure white spathe and yellow spadix	South African plant widely cultivated for its showy pure white spathe and yellow spadix