These are nothing more than Crassula ovata, that grow very fast and easy in the Western States. Each variety will have a different name. I understand that they are a challange to growers that live in the Eastern States.
In Africa they grow on rocky hill sides with little care and like to be crowded. Getting rain during the months of April -Sept, when they are domant here in the U.S. I understand that they were quiet expensive to buy at one time especially in the cold states, and do not do well in the Eastrn states due to humidity problems, peat moss, too much watering, they are loved because they are green all year round. The grow best in cool weather, and will flower for Christmas with correct care. I can write a book on this species, there are about 23-23 varieties. The are easy to bonsai, used for dishgardens, and wreaths, or small miniature trees. Love neleget,will take temperatures down into the 2otys and come out smiling. Will grow in the house or out side. Grow in semi-shade or full sun. Grown from stem or leaves. No diseases unless you are doing somthing wrong. They have handsome trunks, silver, flakes, streaks, brown, green reds, thick fussy rings around the thick also most round or spoon shaped trimed in red and red dots on the leaves which they breath out of during the day and take in nurturants during the night.The leafes come in different sizes and shapes. Whats not to love they have no thorns to hurt the grandchildren or pets, they have been around a long time. Often passed
on from generation to generation. Norma

Very nice I'l eventually get one as I think they are somewhat nice, not my type of plant, but certainly one I won't mind in adding to my collection.

Do you reccomend any specific Crassula?

Curious,
the straight, no-frills Crassula ovata will probably grow the fastest. I really admire
this plant for its trunk (which can be quite varied and interesting, as Norma mentioned).

That said, there are a few 'sports' - mutations found on Jade plants - that are very cool!

A few of my favorites are "Gollum," "Hobbit," "Skinny Fingers," and "Hummel's Sunset."
The "Hummel's Sunset" took the longest to find, but the colors are definitely worth it!
I also like the small-leafed Jades with compact growth. These do grow a bit slower, but
they are also excellent for bonsai (which Norma also mentioned).

Josh

Good morning, Abel!
I couldn't resist taking a couple pictures for you.
Here are a few of my Jades - and a close-up, to show off the nice colors this time of year. In person, the Jades have even more subtle shades of yellow, orange, pink, and red. Depending upon your climate, Jades will color at different times of the year.

Josh

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And Curious,

If you do a search here using 'jade' you will get more to read than three editions of 'War and Peace'. Kernels of wisdom and some chaff, but confidence reigns supreme that you'll be able to tell the difference.

Very NICE Josh...as always, I enjoy looking at your fabulous Jades. I have to wait a few more months till I get those pretty colors on mine *sigh*. Our low's have been in the low 80's Ugh!!

Thanks, Pug!
Lows in the 80's? Yeesh...that's way too hot!
We've been going from the mid-90's during the day, down into the mid-60's at night.

They are very nice josh, They are pretty cool. they look kinda plasticki. I certainly have to get one. Do any ever get caudex's or chubby?

Thanks, Abel