Poysanya

This would be a cool plant that the Sniffer can dig up

They also repel “intelligent” mobs such as Villagers, Illagers and Piglins

When stepped on, hit by a projectile, or a falling block, they make poison clouds and go into a cooldown state. They revert back after a short period of time or after using bone meal. The poison cloud lasts for 3 seconds, but the poison will linger for an additional 6 seconds. The poison cloud will inflict Poison1 naturally, but splashing the Poysanya with a splash potion of poison of a higher level will change the Poysanya's poison cloud to match that Poison level permanently. Throwing a splash harming potion on the Poysanya will allow it to kill (Poison usually brings you to 1hp)

Poysanya can be pollinated at a 20% chance by setting off adjacent Poysanya poison clouds. This does not work if the Poysanya is on a cooldown or is dull. After a short of period of time, the pollinated Poysanya will revert and drop a Poysanya seed. This can be sped up using bone meal.

Poysanya's can be cooked to make them dull (This is obviously for people who want to use them for decorative purposes) and they can be hit with a splash poison potion of any tier to re-activate it