acaulescent
/əˌkɑːˈʌlsənt/Definitions
1. adjective
A plant or flower that has no visible stem, especially in the juvenile stage.
“The acaulescent plant was difficult to identify due to its lack of stem.”
2. noun
A plant in the juvenile stage that has not yet developed a visible stem.
“The botanist studied the acaulescent phase of the plant’s life cycle.”