If you've got an Oklahoma medical marijuana card, there's a pretty good chance you've forgotten it's even in your wallet. Does Texas Recognize Oklahoma Medical Marijuana Cards? Your Oklahoma medical marijuana license doesn't travel with you. Once you cross into Texas, you're playing by Texas rules, and Texas doesn't care where you bought it. What Oklahoma OMMA Patients Should Know Before TravelingThis isn't about whether you agree with Oklahoma's marijuana laws or Texas' marijuana laws.