Rosette leaves up to 12 in. long and pinnate-divided with 6-14 pairs of leaflets; edges (margins) are toothed
Stems have very few leaves; typically small and oval to strap-like (linear) with toothed to lobed edges
Small (less than 0.6 in. wide) and yellow with four petals
Seed pods are round, slender and 1.5-2.5 in. long; the end tapers to a point; contain numerous round seeds; pod constricts around seeds (appears beaded)
Deep, slender taproot
Grows best in sites with dry, sandy soils and sparse vegetation; often infests roadsides, waste areas, washes and desert areas; known to occur in Clark, Lincoln and Nye counties
Annual; reproduces by seed
Also known as Sahara mustard
Repeated hand-removal can be effective; disturbances such as fire, tillage and grazing often promote mustard growth
Apply glyphosate, 2,4-D or triclopyr to actively growing plants before flowering