Brambles are aggressive plants exclusive to the Don't Starve: Hamlet DLC.
They spawn during Lush Season in big lines, and can especially be found in the Rainforest, Deep Rainforest, Gas Rainforest, Plains and Painted biomes. They will not spawn or spread onto most crafted turfs, with the exception of Beard Hair Rug. Due to these turf restrictions, they seem to avoid spawning in Lily Pond, Cultivated and Pig City biomes.
If the player hits a Bramble in order to destroy it, it will damage the player 3 for each hit. Wormwood can avoid this damage by wearing the Bramble Husk. When it is destroyed other brambles in its line are destroyed along with it.
In the end of the Lush Season, Brambles will slowly begin to disappear over about one day.