bastard lignum vitae vs Guaiacum sanctum

bastard lignum vitae and Guaiacum sanctum both are nouns.

Word	Noun	Adjective	Verb	Adverb
bastard lignum vitae	Yes	No	No	No
Guaiacum sanctum	Yes	No	No	No

As nouns, bastard lignum vitae and Guaiacum sanctum are synonyms defined as:

bastard lignum vitae and Guaiacum sanctum: small evergreen tree of the southern United States and West Indies a source of lignum vitae wood

bastard lignum vitae (noun)	Guaiacum sanctum (noun)
small evergreen tree of the southern United States and West Indies a source of lignum vitae wood	small evergreen tree of the southern United States and West Indies a source of lignum vitae wood