These are native to the area and they are gorgeous. Landscape architects love them. The yellow-flowering variety was used extensively in the design of a nearby shopping center that opened a few years ago (with a Starbucks, a Ben & Jerry's and a Jamba Juice).
Last weekend I'd opined the trees were going out of their annual blooming season, but it turns out they were just entering it. I took these shots today (including one of the tree that sits in the street outside my building). (That "North Miami Beach Welcomes You" sign is something new on U.S. 1.)