2. Reward, prize, recompense imply something given in return for good. A reward is something given or done in return for good (or, more rarely, evil) received; it may refer to something abstract or concrete: a $50 reward; Virtue is its own reward. Prize refers to something concrete offered as a reward of merit, or to be contested for and given to the winner: to win a prize for an essay. A recompense is something given or done, whether as reward or punishment, for acts performed, services rendered, etc.; or it may be something given in compensation for loss or injury suffered, etc.: Renown was his principal recompense for years of hard work.

Did you mean superweed?