A citrus fruit, it's tart, reminds me of yuzu somewhat, and sour orange, but different. The puree I have tastes sort of like if you put whole kumquats in the blender with a little bit of grapefruit juice and lime zest? It has enough bitter and sour to add complexity to the drink, and isn't something I'd drink straight from the bottle. I think in the Philippines it's used more in cooking, like we use sour oranges here.
We are in the Southeast too but Florida is diverse as heck I think we have people from everywhere. I did literally order the juice from Walmart :)
Slightly off topic but there was an escaped monkey around and people would never report it until they were sure it was gone, they didn't want it caught.
https://www.npr.org/sections/thetwo-way/2012/10/25/163620501/floridas-mystery-monkey-captured-after-three-years-on-the-lam