Calvary clover vs Medicago echinus

Calvary clover and Medicago echinus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Calvary clover	Yes	No	No	No
Medicago echinus	Yes	No	No	No

As nouns, Calvary clover and Medicago echinus are synonyms defined as:

Calvary clover and Medicago echinus: an annual of the Mediterranean area having spiny seed pods and leaves with dark spots

Other synonyms of Calvary clover include Medicago intertexta.

Calvary clover (noun)	Medicago echinus (noun)
an annual of the Mediterranean area having spiny seed pods and leaves with dark spots	an annual of the Mediterranean area having spiny seed pods and leaves with dark spots