Marijuana also called cannabis is a leafy plant, which grows wild in many of the tropic areas of the world. The most commonly used form of cannabis are the leaves and flowering tops called buds which may be either smoked or eaten. It can be also concentrated to form called hashish, and as a sticky black liquid called hash oil.
There are three different species of cannabis: Cannabis sativa, Cannabis indica, and Cannabis ruderalis. The power of cannabis is different from one variety to another. Some requires only small amount of drug to reach full effects and some requires many hits to get the same effects. Cannabis is sold on the street in the United States from $30 to $120 depending on quality. Sales of cannabis are illegal in the United States but many countries have legalized it because of the medical use of cannabis. Cannabis plants do grow wild in many parts of the world. This plants has been used for thousands of years for medical use only until the 19th century when use of cannabis spread from China and the Middle East to the population of Europe and America. Since that time cannabis became illegal and very popular drug known in all countries.
In some way the affects of the marijuana may be serious. When smoked, the effects of cannabis begin immediately. When eaten the effects can take 1 to 2 hours to begin, depending on how much food is in the stomach. The effect after smoking cannabis may last for 1-2 hours and when eaten, the effects may sometimes last longer than 4 hours. One of the primary effects of smoking cannabis is relaxation, and changes of mood. By taking low amount of marijuana, affects are just talkativeness, laughing at any nonsense, and closed-eye visuals. By taking greater amount of this drug, vision and memory may be lost for a certain time. Marijuana leaves also affects quite after taking it. Affects like paranoia, confusion, tiredness, and reduced ability to concentrate.