1. Acacia of some description. I'm horrible at telling them apart, myself. 2. I have no clue, and would need to know if it had spines or not, and maybe see a flower, to ID it. Other people are more cactus-friendly. 3. Looks like Tecoma stans. Did the flowers look like this close up?
3. Looks like Tecoma stans. Did the flowers look like this close up? I took the original pic and blew it up for a closer view -- seems to be large single flowers, not clusters like rhodos:
More pictures resulting from a search for "tecoma stans". Notice the variation shown. If not that one maybe another in the same or a related genus. http://images.google.com/images?q=t...US:official&client=firefox-a&um=1&sa=N&tab=wi