Hang on, the Latin name is Ilex vomitoria. Will yaupon make me throw up?
No, yaupon does not cause vomiting. The misleading name comes from Royal Botanist William Aiton, who in 1789 named the plant based on misinterpreted European accounts of an Indigenous purification ceremony. The vomiting observed by European colonists was likely a result of the ceremonial context itself, which involved consuming extremely large quantities while fasting, sometimes mixed with other plants.
Yaupon, consumed normally, doesn’t make you throw up, and modern research confirms that yaupon leaves contain no emetic compounds. In fact, yaupon's low tannin content makes it easier on digestion than most traditional teas.