sea eryngium vs sea holm

sea eryngium and sea holm both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea eryngium	Yes	No	No	No
sea holm	Yes	No	No	No

As nouns, sea eryngium and sea holm are synonyms defined as:

sea eryngium and sea holm: European evergreen eryngo with twisted spiny leaves naturalized on United States east coast; roots formerly used as an aphrodisiac

Other synonyms of sea eryngium include Eryngium maritimum, sea holly.

sea eryngium (noun)	sea holm (noun)
European evergreen eryngo with twisted spiny leaves naturalized on United States east coast; roots formerly used as an aphrodisiac	European evergreen eryngo with twisted spiny leaves naturalized on United States east coast; roots formerly used as an aphrodisiac