Neither team led by more than six points in a first half that was tied six times.
Florida, which entered the game shooting 42.9 percent from beyond the arc and was averaging 12 3-pointers a game, went 3 of 14 from long range in the period — all by Erving Walker — while the Orange struggled even more, hitting just 1 of 10.
After the Orange built a 39-30 lead early in the second, Boynton led the Gators back with three 3s, the last putting Florida back on top 49-46 with 9:19 to go. Triche tied it for the fourth time in the period 11 seconds later with his first 3 of the game.
Jardine fed Joseph for a one-handed slam to break the tie and Jardine's steal and layup had the Orange up 54-49 with 6:20 to go and the crowd shaking the Carrier Dome.
The roar reached another crescendo when Jardine hit a runner in the lane as the shot clock neared zero, Joseph fed C.J. Fair for a baseline jumper, and Jardine hit a 3 from the left wing in a span of 2:19.
That gave Syracuse a 61-53 lead with 3:52 left and the Gators couldn't rally back.