Heracleum vs rosid dicot genus

Heracleum and rosid dicot genus both are nouns.

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

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

Heracleum: widely distributed genus of plants with usually thick rootstocks and large umbels of white flowers
rosid dicot genus: a genus of dicotyledonous plants

Heracleum (noun)	rosid dicot genus (noun)
widely distributed genus of plants with usually thick rootstocks and large umbels of white flowers	a genus of dicotyledonous plants