Dioscorea elephantipes vs tortoise plant

Dioscorea elephantipes and tortoise plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dioscorea elephantipes	Yes	No	No	No
tortoise plant	Yes	No	No	No

As nouns, Dioscorea elephantipes and tortoise plant are synonyms defined as:

Dioscorea elephantipes and tortoise plant: South African vine having a massive rootstock covered with deeply fissured bark

Other synonyms of Dioscorea elephantipes include elephant's-foot, Hottentot's bread vine, Hottentot bread vine.

Dioscorea elephantipes (noun)	tortoise plant (noun)
South African vine having a massive rootstock covered with deeply fissured bark	South African vine having a massive rootstock covered with deeply fissured bark