I just discovered these on my property and I'm stoked! I have a pretty bad caffeine addiction and spend a fortune on redbull. I have been weaning myself off and have been trying to drink more tea (mostly to save money). Now I have an entirely free alternative, in abundance! And it's full of antioxidants! Plus, if the world goes to hell, I won't have to deal with severe caffeine withdrawal, yay!
Some more fun facts I just learned;
If you have ever had Yerba Mate (pretty damn good), it is made from the South American cousin of the Yaupon and supposedly have similar taste. Although I've only had commercially bottled stuff, which probably tastes nothing like the real stuff, I liked it a lot.
The scientific name, Ilex Vomitorium, comes from the
Native American practice of making an incredibly strong tea from the Yaupon and drinking it until they threw up. A sort of cleansing ritual. Also, some of them would have contests to see who could hold out the longest before throwing up, a show of strength type thing. (I didn't read the link so sorry if this is repeated)
You can also make a non-caffeinated tea from American Holly.