fraxinella vs herbaceous plant

fraxinella and herbaceous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
fraxinella	Yes	No	No	No
herbaceous plant	Yes	No	No	No

As nouns, herbaceous plant is a hypernym of fraxinella; that is, herbaceous plant is a word with a broader meaning than fraxinella:

fraxinella: Eurasian perennial herb with white flowers that emit flammable vapor in hot weather
herbaceous plant: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

Other hypernyms of fraxinella include herb.

fraxinella (noun)	herbaceous plant (noun)
Eurasian perennial herb with white flowers that emit flammable vapor in hot weather	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests