Tiny butter yellow flowers popping up along roadsides and in fields gone fallow give away the presence of one of the secret delicacies of the fall and winter. Mustard greens are flowering right ...

Unlike cressleaf, yellow rocket is in the mustard family. The flowers look very different from cressleaf and the plants are typically shorter on green stems and grow with a taproot.

The bright yellow blooms of the black mustard plant fill the hillsides of Calabasas along the 101 Freeway corridor where the Woolsey fire raged six months ago. (Al Seib / Los Angeles Times) 2 / 8.

NAPA COUNTY, Calif. (AP) — Brilliant yellow and gold mustard is carpeting Northern California's wine country, signaling the start of spring and the celebration of all flavors sharp and mustardy.