The Bur Weed is a node, similar to the Husky Weed, that may sometimes be found in drier areas throughout the Backyard such as the Haze or Dry Grasslands. It can be chopped with a Scythe of Blossoms, Acid Edge, or Termite Axe for Weed Stems and Spiky Burs. Unlike Grass, it will grow back again after chopping the stump left behind, unless a Base Building is near it.
This weed will only grow widely after the weed killer canister found in the Haze is sealed with a Gum Nugget. Some Spiky Burs can be found in a pot on the shed's deck without sealing the Haze.