Definition of water arum in US English:

water arum


  • A plant of the arum family, with heart-shaped leaves, a white spathe, and a green spadix. It grows in swamps and boggy ground in north temperate regions.

    Calla palustris, family Araceae

    Also called wild calla
    • ‘The water arum is found in marshes, ditches and shallow water.’
    • ‘Mrs. McCarrick's feet were wet this day but her eyes were sharp and her mission was clear: she was at the bog to spot wildflowers, from graceful water arums to insect-devouring pitcher plants.’
    • ‘They make use of this period of time, counting the number of fish they have caught this year, and presenting dried fish and water arums to each other as gifts.’