Latin Name: Sinapis arvensis

Flower: Bright yellow, four-petaled flowers that bloom from late spring through midsummer.

Leaves: Lobed, toothed, and rough to the touch, with lower leaves being larger and upper leaves smaller.

Stems: Erect, slightly hairy, and branching, growing up to 1 meter tall.

Growing Environment: Prefers well-drained soils in fields, pastures, and disturbed areas.

Growth Habit: An annual herb that spreads by seeds, forming dense patches in open areas. It often forms tall, bushy stands of yellow flowers in disturbed habitats. In situ, wild mustard appears as scattered or dense stands of yellow-flowered plants in fields and roadsides.