I first encountered this tree while vacationing on the island of Tenerife, Spain. The "Drago Milenario" (Thousand Year old Draco) is one of the main tourist attractions on the island. It is a very impressive tree and unlike any other that I had seen. The images below will help give an idea of what the Dragon tree looks like up close and at various stages of development.
The trees above are actually several young Dracos growing very close together. These are in Torremolinos on the grounds of the conference center. There are a lot of Dracos planted along the Costa del Sol (The coast in the far south of Spain). Dracos can only grow in areas where it never freezes.
Most Dracos that I have seen start branching at about 2-3 meters off the ground although I have seen some that grow straight up to 8-10 meters without braching.
The images above and below are of the Draco flower at two different stages of development.
Above and below you can see how the branches develop and what the "leaves" look like up close.