Amaranthus albus is a herbaceous annual plant with a clumping habit. It is in the amaranth family, Amaranthaceae and it is known by multiple common names including Common Tumbleweed, Tumble Pigweed, White Amaranth and White Pigweed. Flowers are tiny and green-white, sometime pink in colour and both male and female flowers are produced in the same clump of plants. Leaves are green in colour, with toothed, wavy-margined edges. Originating from Northern America, this species is considered very competitive due to its fast-growing, vigorous nature. This species has a strong branching habit and typically grows to around 50cm in height. This plant forms tumbleweeds after dieing, if allowed to dry out.