skirret vs marsh plant

skirret and marsh plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
skirret	Yes	No	No	No
marsh plant	Yes	No	No	No

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

skirret: an Asiatic herb cultivated in Europe for its sweet edible tuberous root
marsh plant: a semiaquatic plant that grows in soft wet land; most are monocots: sedge, sphagnum, grasses, cattails, etc; possibly heath

Other hypernyms of skirret include bog plant, swamp plant.

skirret (noun)	marsh plant (noun)
an Asiatic herb cultivated in Europe for its sweet edible tuberous root	a semiaquatic plant that grows in soft wet land; most are monocots: sedge, sphagnum, grasses, cattails, etc; possibly heath