tortoise plant vs Hottentot bread vine

tortoise plant and Hottentot bread vine both are nouns.

Word	Noun	Adjective	Verb	Adverb
tortoise plant	Yes	No	No	No
Hottentot bread vine	Yes	No	No	No

As nouns, tortoise plant and Hottentot bread vine are synonyms defined as:

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

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

tortoise plant (noun)	Hottentot bread vine (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