Other common names
Tansy mustard, herb sophia
A bushy, much-branched plant that grows up to 2 or more feet tall, flixweed blooms early in the spring.
Stems are upright and branched. Plants grow in a rosette (ground-hugging form, see photo to the right) until the flowering stems are growing.
Tiny and yellow with four petals;arranged in branched structures. Blooms from early spring to summer.
Has a short taproot.
Europe, naturalized in much of the United States
Where it grows
Gardens, landscaped areas, rangeland, vacant lots, roadsides and other disturbed or unmanaged sites.
Winter annual (sprouts in fall or early winter), summer annual (sprouts in spring or summer), sometimes biennial (flowers and dies in the second year of growth)
Reproduces by seed.
Flixweed is a prolific seed‐producer, and can build up a reserve of seed in the soil. The seeds survive for years in the soil. Plants are most easily removed when they are small rosettes (ground‐hugging forms). Control relies on preventing the production of seed.