I saw recently that hyp3rids released one called La Perla Negra IBL heirloom in which they are certain came from Oaxaca. The description and pictures sound and look more like the CS one offered.
Hyp3ids describes it as 10-12 weeks, broader leaves, not much stretch, sweet/floral round dense buds. I mean it sounds like a hybrid right? But I don’t know, hyp3ids seems to put a lot work into their landrace and heirlooms. He doesn’t mention where he sourced the original seeds from but he might if asked.
The picture below (not mine) is of La Perla Negra on the left and CS’s Oxacan on the right and I can see some similarities.
