We have introductory text for a few succulent genera (Aeonium, Agave, Aloe, Dudleya, Echeveria, Pachypodium), accompanied by some helpful photos by people like Karen and Tiffany, and from there you can navigate to individual pages from the plant database. At the moment I am working backward through the tree aloes trying to fill in their heights and some other details, but it does take some time to cover the ground. And my desk time for the day is starting to expire.
Just for fun, since I'm nose-deep in this right now, here some of the better illustrated tree aloes from the database. All of these plants can grow to 10 feet or more in height. They are listed in height order, ending with the giant of the group.
