Identification: pics from zoo greenhouses.. what are they?

i went to calgary a little while ago and got these pics and more. what are they?

 

First one appears to be Yucca elephantipes.
Second one (a plam) is difficult to ID with the vine growing and covering so much of it.
Third pic could very well be an Acacia species. Somewhat blurry photo.

Cheers, LPN.

 

The very long petiole of the palm frond suggests perhaps Howea belmoreana.

The third one is very blurry but the tree appears to have quite large bipinnate leaves. Possibilities that come to mind are Delonix regia and Jacaranda mimosifolia.

 

If its the vine you want an id for it looks like a type of aristolochia.

 

Surely it's something in the morning-glory family -- Ipomoea or possibly Merremia or Argyreia.

 

"Legume" tree on the right may be Jacaranda. (not a legume)
http://en.wikipedia.org/wiki/Image:Jacarandatree.jpg
HTH
Chris