A suggestion, from folklore based on an IRL plant:
Mandrake: screams when pulled up, somewhat hallucinogenic.
This project sounds interesting, I'll be following it.
Edit:
If you are including spices, how about:
The Spice Melange: this orange-brown spice is believed to be secreted by giant sandworms. It slows ageing and provides immunity to some common poisons.
Dune ftw.