Ilex vomitoria, commonly known as yaupon (/ˈjɔːpɒn/) or yaupon holly, is a species of holly that is native to southeastern North America.[2] The word yaupon was derived from the Catawbanyą́pą, from yą- tree + pą leaf.[3] Another common name, cassina, was borrowed from Timucua[4] (despite this, it usually refers to Ilex cassine). The Latin name comes from an observation by early Europeans that the ingestion of the plant was followed by vomiting in certain ceremonies.
The plant was traditionally used by Native Americans to make an infusion containing caffeine. It is only one of two known plants endemic to North America that produce caffeine. The other (containing 80% less) is Ilex cassine, commonly known as dahoon holly.[5] Yaupon is also widely used for landscaping in its native range.
Description
Yaupon holly is an evergreenshrub or small tree reaching 5–9 m tall, with smooth, light gray bark and slender, hairy shoots. The leaf arrangement is alternate, with leaves ovate to elliptical and a rounded apex with crenate or coarsely serrated margin, 1–4.5 cm long and 1–2 cm broad, glossy dark green above, slightly paler below. The flowers are 5–5.5 mm diameter, with a white four-lobed corolla. The fruit is a small round, shiny, and red (occasionally yellow) drupe 4–6 mm diameter containing four pits, which are dispersed by birds eating the fruit. The species may be distinguished from the similar Ilex cassine by its smaller leaves with a rounded, not acute apex.[6][7][8][9][10]
Some Native American tribes brew the leaves and stems to create an herbal tea, commonly called black drink. Historically the ceremonial consumption often included vomiting, and Europeans deduced that yaupon caused it (hence the Latin name - Ilex vomitoria).[11] The active ingredients, like those of the related yerba mate and guayusa plants, are caffeine, theobromine, and theophylline;[12][13] the vomiting may have resulted from the great quantities in which they drank the beverage, coupled with fasting.[6][14]
Native Americans may have also used the infusion as a laxative.[15]Ilex vomitoria usage by colonists for tea making and for medicinal uses in the Carolinas is documented by the early 18th century. In the English-speaking colonies, it was known variously as cassina, yaupon tea, Indian tea, Carolina tea, and Appalachian tea. Recently, the process of drying the leaves for consumption has been adopted by modern Americans, and yaupon is now commercially available.[16][17][18][19]
Ornamental
Ilex vomitoria is a common landscape plant in the Southeastern United States. The most common cultivars are slow-growing shrubs popular for their dense, evergreen foliage and their adaptability to pruning into hedges of various shapes. These include:
^"Ilex vomitoria". Bioimages. Vanderbilt University. Retrieved 27 June 2019.
^Hudson, Charles, M (1979). Black Drink: A Native American Tea. University of Georgia Press.((cite book)): CS1 maint: multiple names: authors list (link)
^Hudson, Charles M. (1976). The Southeastern Indians. University of Tennessee Press ISBN0-87049-248-9.
^Niering, William A.; Olmstead, Nancy C. (1985) [1979]. The Audubon Society Field Guide to North American Wildflowers, Eastern Region. Knopf. p. 338. ISBN0-394-50432-1.
