i think i found a miracle berry plant in the vicinity

I came across these curiously ellipsoidal berries from a street tree whose ripe-looking ones were a deep bright red, while the others were bright orange or green. I took a couple back home to find out what they were. It seems that they're miracle berries that change something in your mouth so that your tastebuds register anything that's sour or bitter as sweet. I had read about this phenomenon after learning that the sweetness of an artichoke heart might actually be because of some changes in chemical detectors and receptors. 

If I'm certain that the plant is indeed miracle berry, I shall do a little taste experiment with some bitter gourds. 

addendum. No miracle here because sadly, it wasn't a miracle berry.