>>2376249As a caveat to the above, do not do the "try a bit and spit it out" if you are attempting to ID a mushroom. Gilled mushrooms in particular include the vast majority of the deadly toxic species, such as those in Amanita and Galerina. With rare exceptions, you should not try to eat gilled mushrooms unless you are experienced in identifying mushrooms. Don't be this anon.
>>2375971As for you specifically, I don't have much in the way of advice. You're on the opposite hemisphere, unfortunately. I do know that you have yerba mate, Ilex paraguariensis, although you may not find that unless you're in the eastern portion of the country, if wikipedia is to be trusted. Cherimoya also seems to grown naturally or have been introduced near the north-western portion of the country, so you might find some of those wild. Solanaceae (the plant family that contains tomatoes, peppers, potatoes, nightshade, etc.) has much of its genetic diversity in Central and South America, so that might be a good starting point for you, although the family does contain toxic species. "Weird Fruit Explorer" on youtube has a lot of videos on stuff from all around the world, including a good collection of Solanaceae and likely some other South American fruits, may be worth checking out. He usually does a decent job of including native words for whatever fruit he's reviewing, in case that would be helpful.