Marijuana is devided into two main species, and then different strains exist, like white widow.Sativa and Indica.Sativa plants are traditionally larger and have a longer growth cycle and gives you a “spiritual” head high.Indica plants are generally more compact and has a shorter growth cycle and gives you a premium power high.Marijuana is one of the most diverse plants in the world.Don’t worry to much about specifics ,the only way to find out what plant your gonna get is to just grow them.Sativa plants are gonna give you a third of a pound to five pounds of sinsemilla per plant outside in full sunlight.Sativa are generally large plants with light green leaves and log narrow blades.As mentioned before Sativa plants have a longer growth cycle then other marijuana plants such as Indica.Sativa plants grow very good in tropical climates.Sativa grows in mid October till December.Sativa is usually imported from countries south of the United States,but they grow all over the world.The most common varieties are the States are Mexican,Colombia and Jamaican.