The distinctive tree of Puerto Rico is the aptly named red flamboyan, also known as a royal poinciana. You can find these growing wild everywhere throughout the island during the wet season months, particularly in April in Rincon.
The trees often line the roads, and you can find their blooms carpeting the roadways. They're absolutely stunning in person, and come a variety of colors (red, orange, yellow).
If you're here during the blooming season, be sure to snap some photos of these flamboyant flora.