Berteroa incana is an annual, biennial, or perennial in the mustard family growing 1-3 ft. (0.3-0.9 m) tall.
Foliage
Stems are gray-green and hairy with many branches near the top. Alternate leaves are gray-green, hairy, alternate, oblong, narrow, 0.5-3 in. (1.3-7.6 cm) long, with smooth edges.
Flowers
White flowers with 4 deeply divided petals are produced in long raceme.
Fruit
Seed pods are hairy, swollen, and oblong with short beaks on the end. Oblong seeds are rough, dull gray-brown. It reproduces and spreads by seeds.
Ecological Threat
Spreads rapidly due to the high number of seeds per plant. The plant emerges early in spring and continues to flower and produce seed until frost. It can cause toxicity to horses.