Yes, that's right, lablabs are poisonous in certain stages.
Some people claim to eat lablab beans. Some claim that certain varieties are not poisonous, but I wonder if the real danger is lack of enough cooking to drive off the cyanoglycocides (sp?). Only a few cultures eat lablabs. It would be interesting to get the definitive word.
It might be that eating the pods is dangerous, if the seeds are a little too mature, and the pods cooked only briefly (which would make sense, since the pods would not stand up to long cooking).
Runner beans have fairly palatable dry beans. I think we have one chap on here who likes them a lot. I'm growing scarlet runners the coming year, just because they are easier than common beans (Phaseolus vulgaris) and more productive in my climate. They are also fitfully perennial, but mine having been weak from attack by Pythium root rot, and having had a severe freeze this year with no snow cover, I am not optimistic of seeing them again, and am planning on just replanting them.
