In the UK we have a tree, closely related to the buckeye, that we call "horse chestnut", because of the resemblance of the seeds to edible chestnuts. The seeds (or nuts) are called conkers and are used to play a game, also called conkers, where you try to smash your opponent's conker with yours.
Here it is kastanje and paardenkastanje paarden means horses. But it isnt until now and looking up the english names and differences etc. That I realize that the leaf I allways that was chestnut, is actually horse chestnut..
They can be turned into flour or roasted for a coffee substitute, but the tannins must first be leached out of them. We have several white oak trees and I tried the process once just to see what they were like. IMO they were bland and not worth the trouble of collecting, leaching, drying, shelling, and grinding - good to know for survival situations, but not for everyday table fare.
In small amounts they are fine, but they have a high concentration of tannins in them so they are bitter and potentially toxic. To be eaten in large quantities they have to be be crushed and boiled or chemically treated multiple times to remove them. In other words it's not economically viable as a human food source. At least this is something I remember from a Bear Gryllis or Dual Survivor or something like that show.
Sounds a bit like buckeyes, then, although I've never heard of anyone turning them into flour (and I now recall that I have heard of acorn flour, though I've never eaten it). Good to know!
Lovely quiz! Great mix of things, all good pictures. Had no idea that Soybean looks like that! Perhaps because it's still in its green-stalk-thingy (excuse my use of complex terminology).
Putting pumpkin seeds (or any nut still in its shell- looking at you pistachios) into a group of mixed nuts should be considered a crime against humanity.
It is in fact spelled "pistacchio" in Italian, and pronounced with a hard K sound. But in English is commonly spelled "pistachios" and sadly pronounced with a soft CH sound.
Parks in Korea often have signs telling us to not take the acorns because the squirrels need them.
In diasporic communities many children are embarrassed by their parents who stop by side of the road or highway to collect acorns.
Finally level 15 it took 1.5 hours