sweet cassava vs Manihot dulcis

sweet cassava and Manihot dulcis both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet cassava	Yes	No	No	No
Manihot dulcis	Yes	No	No	No

As nouns, sweet cassava and Manihot dulcis are synonyms defined as:

sweet cassava and Manihot dulcis: South American plant with roots used as a vegetable and herbage used for stock feed

sweet cassava (noun)	Manihot dulcis (noun)
South American plant with roots used as a vegetable and herbage used for stock feed	South American plant with roots used as a vegetable and herbage used for stock feed