sickle lucerne vs medick

sickle lucerne and medick both are nouns.

Word	Noun	Adjective	Verb	Adverb
sickle lucerne	Yes	No	No	No
medick	Yes	No	No	No

As nouns, medick is a hypernym of sickle lucerne; that is, medick is a word with a broader meaning than sickle lucerne:

sickle lucerne: European medic naturalized in North America having yellow flowers and sickle-shaped pods
medick: any of several Old World herbs of the genus Medicago having small flowers and trifoliate compound leaves

Other hypernyms of sickle lucerne include medic, trefoil.

sickle lucerne (noun)	medick (noun)
European medic naturalized in North America having yellow flowers and sickle-shaped pods	any of several Old World herbs of the genus Medicago having small flowers and trifoliate compound leaves