Can anyone confirm the scientific name for the fruit being discussed here? I was under the impression it was Eugenia stipitata but some comments suggest not. I have the option to buy an Araza tree but I am curious now to which one it might be.
Araça-boi is eugenia stipitata. It is a massive super sour fruit, like the size of a baseball.
Araza is the common name for guavas (psidiums) in Argentina, where the seeds of "araza-banana" are from, and several other Latin American countries
also refer to guavas as arazas.
Araça is the name used for smaller guavas in Brazil, which are often found in the restinga or beach zone. This is different than "goiaba" which is the larger standard tropical guava (guajava) that there is plenty of in Mexico, Asia and North America.
I purchased these seeds in 2019 from Marcos as "araza-banana", and it has fruited the last couple years for me. I have two plants, one fruits well, the other flowers well but has not fruited. The fruit, leaves, and structure seems closest to Psidium Australe, which, funny enough is shown to be native to the Missiones region Marcos Gugliemetti is from. Another collector, Kelly Gabrysch has called this same guava which he did not have a scientific name for "Skittles" Guava because it smells and tastes a bit like Skittles candy. Here's his video on it:
https://www.youtube.com/watch?v=BBjvrg0TJq0Here is a link to photos of the fruit and plant:
https://florademisiones.blogspot.com/2019/11/psidium-australe-cambess-var-australe.html