I went to upload my Crassula ovata to the database, and it got me wondering...

We have 'Gollum', 'Hobbit', 'Ogre Ears', 'Red Horn Tree' all listed in the database as varieties of Crassula ovata. What's the difference between these? If I understand correctly, 'Hobbit' has a less tubular leaf shape and they have a spoonlike depression without completely wrapping around. (Though our database images have multiple specimens showing the tubular leaves.) How do you differentiate between these plants?

For what it's worth, the wild type is far more common than any of these cultivars, and of the rest "Gollum" is far more common than the others. "Hobbit" leaves tend to be folded or curled without the suction cup tips that are most predominant on "Gollum".

Some of the back story here....

http://www.crassulaceae.ch/de/...