Warning! Avoid eating any plant that you cannot positively identify. The information on this site is purely informational and you should consult an expert or be one before eating any plant.
 
Edible Wild Mustard
 
Blue Mustard
Blue Mustard is one of my favorites in the desert. I was able to positively identify this one last year in all it's stages and I am so glad I did because I have already been able to enjoy it this year.
 
Blue mustard will grow in fields in late winter to early summer. It grows in gullies(like the one right behind my house), ditch banks and on roadsides. It will take over fields with beautiful purple flowers during the spring. Farmers may hate it but the nutritional value and flavor are a great value to those who know of it as an edible. The flavor is reminiscent of radish though usually not with as strong a flavor as the cultivated radish.
 
I had a sandwich with blue mustard just this morning and then went out to take a few pictures of it in the field across from work. It does not have any poisonous lookalikes and is a great early spring green.
Blue Mustard
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Yellow wild mustard
There are many varieties of mustard available all around us. Most common are the more traditional that have yellow flowers sometimes even pale enough to consider them white. they have a similar taste to the blue mustard and are also edible. There are actually some mustard plants such as the "clasping pepperweed" that will make a great pepper substitute.