Definition of rose mallow in US English:

rose mallow

noun

  • A plant of the mallow family with typically large pink or white flowers, several species of which are cultivated as ornamentals.

    Genus Hibiscus, family Malvaceae: many species, including the showy pink-flowered swamp rose mallow (H. palustris), found especially in coastal marshes of the eastern US

    • ‘Confederate rose or rose mallow, Hibiscus mutabilis, may have a single trunk, but typically is grown as a multitrunked, billowy shrub or small tree.’
    • ‘Old-timers tell us that many dunes were once ablaze with rose mallows.’
    • ‘Typical shrubs include squawbush (a type of sumac); coral bean and fairy duster (both members of the pea family); two types of hibiscus, or rose mallow; and cliff Fendler bush.’