Peas!

It's a southern tradition to eat Black Eyed Peas on New Years day for good luck in the new year. While I was buying my single can of Black Eyed Peas at the grocery store yesterday, I noticed they also had Crowder Peas, and Field Peas. I asked a friend who was also purchasing Black Eyes for her family what the difference in the three types of peas is. She said she doesn't know the difference so she always makes sure she is picking up the Black Eyed Peas.

Other than the absence of black eyes, what is the difference in the three pea types?

Ted