wood sorrel vs herbaceous plant

wood sorrel and herbaceous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
wood sorrel	Yes	No	No	No
herbaceous plant	Yes	No	No	No

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

wood sorrel: any plant or flower of the genus Oxalis
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 wood sorrel include herb.

wood sorrel (noun)	herbaceous plant (noun)
any plant or flower of the genus Oxalis	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests