Definition of alum root in English:

alum root


North American
  • another term for heuchera
    • ‘The amount of alum root in such compounds is 1 ounce.’
    • ‘For dry shade, also try Douglas iris, any of the alum roots, hummingbird sage, sword fern, and foothill sedge.’
    • ‘Heuchera americana, or alum root, is adaptable to sun or shade, given sufficient moisture.’
    • ‘Another plant, also called alum root, was pounded up and used wet to apply to sores and swellings.’
    • ‘It was called Alum Root Flower because its roots shared the astringent qualities of species of true alum root.’