I'm growing some mangetout and miniature sweet peas on my patio and whilst the stems are quite different and the leaves grow in a different formation, the flowers look very similar. I've read that the pods of the latter can be quite toxic. It's not that I don't trust the plant labellers at Dobbies, but the mangetout was one tray put in with a bunch of sweet peas and beans. Is there any way to tell with absolute accuracy whether you've got an edible pea or one that will send you to hospital?

I've got a couple photos of the mangetout I'm growing--if someone could confirm that it's what I think it is, I'd be most grateful

http://lh4.ggpht.com/_-51uY2z0IlY/TE...0/IMAG0508.jpg

http://lh4.ggpht.com/_-51uY2z0IlY/TE...0/IMAG0509.jpg

Thank you!