Plants at san diego zoo

I went to the San Diego Zoo a couple of weeks ago. I was more interested in the plants there than the animals. Here are a few I have no clue what they are but caught my eye. Any help would be appreciated. Thanks.

 

Believe #2 is a trumpet tree, Datura suaveolens, or Brugmansia

 

I'll bet the plants down there keep the horticulture people on their toes.

When I get back that way someday, the trees and plants will probably be why I go to the zoo. Sure a few animals - but it's wild how many plants can grow down that way.

 

First is an aloe.

 

1 looks like Aloe arborescens
2 would be Brugmansia suavolens, not Datura.

 

Not suavolens. Brugmansia suaveolens (syn. Datura suaveolens)

 

Wow, thanks for all the replies. i didnt even know how to search for the first one. i didnt know if it was a cactus, succulent, tree....ect. im new to all this so thanks for helping me. has anyone had any luck with the fuzzy seed i posted?