tree nuts, true nuts, seeds and drupaceous drupes!


hi all!

This website/topic has been raised before, but I couldn't find an old thread that was simple/clear and didn't start/vear way off-the-topic (as in...if it's too convoluted at the beginning, sometimes a reraise is hard to read through)...

So, "Fruits Called Nuts" a very informative webpage by a well-known professor/researcher.


It's a good read through for those of us who are TNA or are just curious how all the ""nuts"" are related to each other - walnuts, almonds, pistachios, cashews, chestnuts, hazelnuts/filberts, coconut, peach pits, mango pits, avocado pits. You'll have a clearer idea of what a ""nut"" is, what a ""seed"" is, and what the heck a drupaceous drupe is!

I guess I should change my profile to say "DDA" as in Drupaceous Drupe Allergic, not TNA "Tree Nut Allergic"

:-) Adrienne

------------------ 30-something survivor of severe peanut/tree nut allergy

On Jun 24, 2006

Your welcome! But I can't take credit for finding it...I read it on a post on here somewhere a year ago now...and then found out it's been referenced for years on here. I just reraise it every now and then when folks have a question on ""nuts"" since it's really not straight forward.

Adrienne [img][/img]

------------------ 30-something survivor of severe peanut/tree nut allergy

On Sep 21, 2007

bumpity bump bump

On Sep 21, 2007

So what is a coconut?

On Sep 21, 2007

a coconut is a drupe..

On Sep 21, 2007

Is a drupe a fruit or a nut or just a drupe?

On Sep 21, 2007


Originally posted by Sarahb: [b]Is a drupe a fruit or a nut or just a drupe?


a drupe is a drupe

drupes can have a fleshy fruity part, or not.

drupes can have a large nutty type seed or small insignificant smushy seed-like area

Sorry, that's not much help...but many drupe seeds are called nuts.


Almond --- is a drupe. The endocarp is just paper thin and green moss-like. The seed is large and very nut like.

Coconut --- is a drupe. The endocarp is very thick and hard flesh (this is part we eat). The seed is located somewhere inside and is more of a 'kernel' than a nut.

I know, argh.


------------------ 30-something survivor of severe peanut/tree nut allergy

On Sep 21, 2007

Funny to see this raised again. I am about to be re-tested by RAST for peanuts. [i]I have a req from my Allergist, just waiting until I have been off the steroids for a while.[/i]

I have previously had a positive RAST (class 2) for almonds...but cannot trace this to any known reaction. I *did* have a severe reaction a few years ago on Christmas Eve at the in-laws following snacks of cashews. They were in a split-dish and I was eating on a candlelit patio...[i]I know, I know - BIG MISTAKE[/i] the time I was aware that sulfites were a problem, but I didn't know the sulfited dried fruit was on the tray.

Anywhoo, I ended up in the ER for several hours (just across the street) with my usual GI symptoms & resp/cardiac involvement.

Since this I have stringently avoided all TN, but PN was not a problem until the last couple of years.

Fingers crossed, Daisy