CHxEPxAR is a modern hybrid strain bred by crossing Erdpurt and Arne. The history of this specific cross remains undocumented, with no established record regarding the time or intent behind its initial development. As a product of these two parental varieties, CHxEPxAR is classified as a modern hybrid and does not possess a confirmed lineage beyond these two foundational plants.

The chemical profile of CHxEPxAR is characterized by a complex array of terpenes, led by myrcene as the dominant compound, followed by limonene, caryophyllene, nerolidol, linalool, beta-pinene, pinene, humulene, isopulegol, caryophyllene-oxide, camphene, ocimene, terpinolene, bisabolol, eucalyptol, and guaiol. This intricate terpene arrangement contributes to the strain's specific aromatic identity. In terms of cultivation, the strain exhibits moderate difficulty and produces a high yield, reaching maturity after a 63-day flowering period in both indoor and outdoor environments.

As a THC-dominant variety, CHxEPxAR is recognized for producing effects that are relaxed, happy, and uplifted. These properties make the strain a common choice for users seeking relief from stress, pain, or sleep-related issues. There are currently no notable offspring recorded for this strain, which maintains a distinct profile within its modern hybrid classification.