Yoga has been practiced for thousands of years and has often been linked to the symbol of the tree. This is because Yoga has many different branches and you can take your pick how many branches you wish to study from.
One difference is that the paths of yoga can often overlap while branches do not. Look at it this way you can only hang from one branch at one time. But you can take part in different yoga aspects at the same time. Many people choose this path until they find one that suits them the best. You can easily do the same too.
If your goal with yoga is to increase your flexibility and strength then you have chosen the correct path. All style of yoga will teach you how to become more in-tune with your body. You will finish your yoga session feeling more at peace with yourself. In today's busy world this is indeed a blessing.