|Ocotillo (Fouquieria splendens)|
Fouquieria is a genus of 11 species of desert plants, the sole genus in the family Fouquieriaceae. The genus includes the ocotillo (F. splendens) and the boojum tree or cirio (F. columnaris). They have semi-succulent stems with thinner spikes projecting from them, with leaves on the bases spikes. They are unrelated to cacti and do not look much like them; their stems are proportionately thinner than cactus stems and their leaves are larger.
The Seri people identify three species of Fouquieria in their area of Mexico: jomjéeziz or xomjéeziz (F. splendens), jomjéeziz caacöl (F. diguetii, Baja California tree ocotillo), and cototaj (F. columnaris, boojum). 
The genus is named after French physician Pierre Fouquier (1776-1850).
The spines of Fouquieria develop in an unusual way, from a woody thickening on the outer (lower) side of the leaf petiole, which remains after the leaf blade and most of the petiole separate and fall from the plant.
Fouquieria species do not have a particularly close resemblance to any other sort of plants; genetic evidence has shown that they belong in the Ericales. Prior to this, they had been variously placed in the Violales or their own order Fouquieriales.
Fouquieria shrevei is endemic to the Cuatro Ciénegas basin in Mexico, and is unusual in possessing vertical resinous wax bands on the stems, and exhibits gypsophily, the ability to grow on soils with a high concentration of gypsum. It has aromatic white flowers and is presumed to be moth-pollinated. Other species in the genus with orange or red flowers are pollinated by hummingbirds or carpenter bees. Fouquieria diguetii is host to a peacock mite, Tuckerella eloisae.
|Wikimedia Commons has media related to Fouquieria.|
|Wikispecies has information related to: Fouquieria|
- Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III" (PDF). Botanical Journal of the Linnean Society 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. Retrieved 2013–07–06.
- "Genus: Fouquieria Kunth". Germplasm Resources Information Network: Fouquieria. 1996-09-17. Retrieved 2011-04-30.
- Felger, Richard S.; Mary B. Moser (1985). People of the Desert and Sea: Ethnobotany of the Seri Indians. Tucson: University of Arizona Press. ISBN 0-8165-0818-6.
- W. J. Robinson, 1904. The spines of Fouquieria. Bulletin of the Torrey Botanical Club. 31(1):45–50
- "Species Records of Fouquieria". Germplasm Resources Information Network: Fouquieria. Retrieved 2011-04-30.
- Moser, Mary B.; Stephen A. Marlett (2005). Comcáac quih yaza quih hant ihíip hac: Diccionario seri-español-inglés (in Spanish and English). Hermosillo, Sonora: Universidad de Sonora and Plaza y Valdés Editores.