Definition of helianthemum in English:

helianthemum

noun

  • A low evergreen shrub with saucer-shaped flowers, which is grown as an ornamental.

    Genus Helianthemum, family Cistaceae

    ‘Helianthemum tends to be more compact with a stiffer, straighter appearance to the stems.’
    Also called rock rose
    ‘More additions to the site will be coming soon including comprehensive guides to the cultivation and maintenance of Helianthemums.’

Origin

Modern Latin, from Greek hēlios ‘sun’ + anthemon ‘flower’ (because the flowers open in sunlight).

Pronunciation

helianthemum

/ˌhiːlɪˈanθɪməm/