Thistle (Fallout 4)

Thistle is a consumable item in Fallout 4.

Characteristics
Thistles can be found growing on irradiated thistle plants in the Commonwealth. They appear to be a mutated version of the average thistle plant.

The plants themselves act as traps - if stepped too closely to, the thistle will explode causing a cloud of highly radioactive dust to fill the air. The radiation is more powerful based on proximity to the plant itself, up to 22 rads per second. The explosion occurs about 5 seconds after being "triggered", giving the player plenty of time to simply collect the Thistle and stop the detonation, or walk out of the radiation's range. However, there is no visual or auditory warning that the plant is going to explode, which can cause it to catch players off-guard if they aren't aware of its presence or effects.

Locations
Thistles tend to be found away from settled or urban areas. Just outside of the first Red Rocket, follow the road out of Sanctuary and head straight to the RR after you pass the teal car.
 * Three can be found just north of USAF Satellite Station Olivia and east of the Robotics disposal ground.