rootstalk
/ˈrutˌstɔk/
noun
- A horizontal underground stem that sends out roots and shoots; a rhizome.
- Gardeners often divide the rootstalk of irises to propagate new plants.
- The ginger rootstalk is used in many Asian dishes for its spicy flavor.
- The rootstalk of the bamboo plant can spread quickly and become invasive.
Synonyms