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helianthemum

noun he·li·an·the·mum \ ˌhēlēˈan(t)thəməm \

Definition of helianthemum

1 capitalized : a geus of Eurasian herbs or undershrubs (family Cistaceae) having showy variously colored flowers with fugacious petals
2 plural -s : any plant of the genus Helianthemum — called also rockrose, sunrose

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Origin and Etymology of helianthemum

New Latin, from 1heli- + -anthemum

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