Here's something you might be interested in.
A nonnative plant more like a weed than a wildflower, mustard is blooming profusely on grassy slopes all along the coastline of San Diego County. An old story, probably apocryphal, tells of the padres scattering mustard seed along the El Camino Real so that the bright, yellow mustard blossoms would help them find their way in future spring seasons. More likely, the plant was introduced to western North America in the form of seeds carried in the hay used to feed livestock brought in by the early settlers.
A nonnative plant more like a weed than a wildflower, mustard is blooming profusely on grassy slopes all along the coastline of San Diego County. An old story, probably apocryphal, tells of the padres scattering mustard seed along the El Camino Real so that the bright, yellow mustard blossoms would help them find their way in future spring seasons. More likely, the plant was introduced to western North America in the form of seeds carried in the hay used to feed livestock brought in by the early settlers.