Eryngium vs rosid dicot genus

Eryngium and rosid dicot genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Eryngium	Yes	No	No	No
rosid dicot genus	Yes	No	No	No

As nouns, rosid dicot genus is a hypernym of Eryngium; that is, rosid dicot genus is a word with a broader meaning than Eryngium:

Eryngium: large genus of decorative plants with thistlelike flower heads; cosmopolitan in distribution
rosid dicot genus: a genus of dicotyledonous plants

Eryngium (noun)	rosid dicot genus (noun)
large genus of decorative plants with thistlelike flower heads; cosmopolitan in distribution	a genus of dicotyledonous plants