Cannabis Sativa is probably the most common form of cannabis worldwide and also the type with the most applications.
Typical appearance of Cannabis Sativa strains
Cannabis Sativa is normally a tall plant, and is generally a lighter shade of green than the other types. Its leaves are made up of long, narrow blades. Female flowers (the buds) are longer and more ‘feathery’ in appearance than those of Cannabis Indica. In general, the foliage of a Sativa plant is somewhat sparser than that of the other varieties. This allows for more air flow around and between the plants, resulting in healthier growth and less risk of fungus in the humid tropical conditions where many Sativa strains originated.
How the equatorial origins of Sativa strains affect their growth
Cannabis Sativa grows taller than the other types of cannabis, gaining height all through its vegetation, or growing, and flowering phases. This is due to the tropical origin of Sativa strains. In the regions close to the equator, the amount of daylight hours does not change very much throughout the year, so Sativa strains are adapted to accomplish both their growing and flowering in a short, fairly uniform photoperiod (the daily number of hours of day (light) vs. night (dark)). In this way they are at the opposite end of the cannabis spectrum to Ruderalis strains.
The female flowers of Cannabis Sativa start at the nodes (the points at which pairs of leaves grow from the stem and branches) and usually expand along the length of the stem and branches, instead of clustering around the nodes, as with other types of cannabis. This flower formation is due to the Sativa tendency to grow and flower simultaneously. As a result, female Sativa flowers are usually less dense and weigh less than Indica flowers, despite being equal or larger in size.