The recreational legality of cannabis in California varies from city to city and even from dispensary to dispensary. Depending on where you live and where you shop, you may still need a medical card. Most delivery services also still require a recommendation.
In addition, you will need a medical recommendation to purchase cannabis if you are under 21 years of age.
Medical card holders are allowed to purchase more product at once, at higher potency, and to cultivate more plants. They are also qualified to apply for a Medical Marijuana Identification Card, a government-issued card that exempts you from a large portion of the new taxes.