Marijuana, or marihuana, is a name for the cannabis plant and more specifically a drug preparation from it. "Marijuana" as a term varies in usage, definition and legal application around the world. Some jurisdictions define "marijuana" as the whole cannabis plant or any part of it, while others refer to "marijuana" as a portion of the cannabis plant that contains high levels of tetrahydrocannabinol (THC). Some jurisdictions recognize "marijuana" as a distinctive strain of cannabis, the other being hemp. For legal, research and statistical reference, "marijuana" generally refers to only the dried leaves and flowering tops (herbal cannabis), with by-products such as hashish or hash oil being uniquely defined and regulated.The form "marihuana" is first attested in Mexican Spanish; it then spread to other varieties of Spanish and to English, French, and other languages.