P91 x Z The P-91 is a strain whose genetics originated in Poway, CA in 1991 (e.g., P-91) and has been employed by patients up and down the west coast seeking a functional smoke with inherent indica effects that are not debilitating. P91 is a product of NORTHERN LIGHTS crossed with itself three times. Z is strain whose effects are calming, leaves consumers focused, alert, and happy while relaxing the body.