| Answer | Crossword Clue |
|---|---|
| COCA | Botanical source of a certain stimulant |
| khat | a shrub (Catha edulis) of the staff-tree family cultivated in the Middle East and Africa for its leaves and buds that are the source of a habituating stimulant when chewed or used as a tea |
| strophanthin | A poisonous substance of the glycoside class, obtained from certain African trees and used as a heart stimulant |
