Scientific Name: Chenopodium album
Weed Family: Chenopodiaceae


Lambsquarter is an erect summer annual. The leaves of lambsquarter are lanceolate in shape, approximately 1-2 inches in length and about 1-inch wide. The edges of the leaf are toothed and the leaf tip is pointed. The leaves are covered with a white mealy substance, especially on the underside of the leaf. The leaves form alternately on the stems. The root of lambsquarter is a branched taproot.

The flowers of lambsquarter are found in small green clusters and lack petals. The clusters of flowers form in terminal spikes. Lambsquarter spreads by black seeds that germinate in the late spring to early summer. Lambsquarter is found throughout Canada and the United States.

Herbicide Use

Make your post-emergence herbicide application to lambsquarter that is actively growing and in the seedling to flower stage of growth.


Germination Dates

Zone-3: JuneZone-4: JuneZone-5: MayZone-6: April-MayZone-7: MarchZone-8: MarchZone-9: February