sunrose vs helianthemum

sunrose and helianthemum both are nouns.

Word	Noun	Adjective	Verb	Adverb
sunrose	Yes	No	No	No
helianthemum	Yes	No	No	No

As nouns, sunrose and helianthemum are synonyms defined as:

sunrose and helianthemum: any plant of the genus Helianthemum; vigorous plants of stony alpine meadows and dry scrub regions

Other synonyms of sunrose include sun rose.

sunrose (noun)	helianthemum (noun)
any plant of the genus Helianthemum; vigorous plants of stony alpine meadows and dry scrub regions	any plant of the genus Helianthemum; vigorous plants of stony alpine meadows and dry scrub regions