| Answer | Crossword Clue |
|---|---|
| SASSAFRAS | Root beer root |
| SASSAFRAS | Its root was once used in root beer |
| SASSAFRASTEA | It's made from a "root" in root beer |
| calyptrogen | the layer of cells on the growing tip of a root giving rise to the root cap |
| calyptrogens | CALYPTROGEN, the layer of cells on the growing tip of a root giving rise to the root cap |
| imaginary | (of a number or quantity) Expressed in terms of the square root of a negative number (usually the square root of ?1, represented by i or j) |
