Thank you, Em.

Actually, I have been trying to remember if I
was taught this in school, and I can't remember that it was ever brought up. I don't think there was any curriculum regarding plants at all. Maybe it was just a big city thing. I went to school in Chicago in the 50s.
I have heard that peanuts are legumes of course, but in my response I was actually referring to the part of the post that was in bold type:
"These tree nuts are not the same as peanut
(only 40% of children with tree nut allergies have an allergy to peanut),..."
Just a miscommunication with the poster. (I'm taking it as such, anyway.)