When people are red-cheeked with good health they are florid. Spending most of the year in the college library can give you a colorless, weary face, but after a mountain vacation, you'll be florid with the reddish color that comes from exercise and living well.
Florid is an adjective that entered English in the 17th century, via the French floride, from the Latin flōridus, "blooming." You can probably guess how Florida and flourish are related! Something overly decorated, such as a really ornate living room, is florid in the flowery sense, while people with rosy cheeks and a look of healthiness are florid because they are flourishing with a fullness of life. Your florid complexion matched your florid red drapes as you came in from the cold and plunked down on the couch near the window.