nounchiefly North American
- another term for heuchera.More example sentences
- Heuchera americana, or alum root, is adaptable to sun or shade, given sufficient moisture.
- The amount of alum root in such compounds is 1 ounce.
- It was called Alum Root Flower because its roots shared the astringent qualities of species of true alum root.
More definitions of alum rootDefinition of alum root in:
- The US English dictionary