The message
from Stewart Robert Hinsley contains these words:

That's not a completely reliable rule of thumb. IIRC, Physalis has both
edible and highly-toxic species. I also wouldn't be surprised if some
edible legumes or umbellifers had toxic close relatives.

They both do, more especially umbellifers.

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Rusty http://www.users.zetnet.co.uk/hi-fi/tqt.htm
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