sun rose vs helianthemum

sun rose and helianthemum both are nouns.

Word	Noun	Adjective	Verb	Adverb
sun rose	Yes	No	No	No
helianthemum	Yes	No	No	No

As nouns, sun rose and helianthemum are synonyms defined as:

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

Other synonyms of sun rose include sunrose.

sun rose (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