What does coyotillo mean?
Coyotillo is a Mexican Spanish term for a thorny shrub or small tree, usually identified as Karwinskia humboldtiana, a member of the rose family. It is native to Mexico and is often planted to make dense protective hedges, particularly in dry or semi-arid areas. The plant also has a toxic reputation because its seeds contain alkaloids that can harm animals, including livestock. In ordinary English, coyotillo is uncommon and appears mainly in botanical, agricultural, toxicological, or other specialized writing about Mexican plants. The name is a diminutive of coyote, literally “little coyote,” although the precise historical reason for that nickname should be treated cautiously. Its usefulness as a living barrier and the danger posed by its seeds make it an important plant in several rural and ecological contexts.
A thorny shrub or small tree native to Mexico, especially Karwinskia humboldtiana, commonly used as a living hedge.
"Dense coyotillo surrounded the farmhouse and protected it from wandering livestock."
The term is chiefly Mexican Spanish and uncommon in general English; botanical writing may use the scientific name Karwinskia humboldtiana instead.
A seed of the coyotillo plant, recognized for the toxicity of its alkaloid content.
"The veterinarian suspected that coyotillo poisoning had killed the goats."
This sense is specialized and is much less common than the name of the plant itself.
The plural is used when referring to multiple plants, branches, or seeds.
"Several coyotillos grew along the dry riverbank."
Its name means “little coyote,” but this plant is no mere pup: its seeds contain the toxic alkaloid karwinskine.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does coyotillo come from?
Coyotillo is a Spanish diminutive of coyote, with the suffix -illo, so its literal form is “little coyote.” The plant name belongs to Mexican Spanish, where coyotillo is used for Karwinskia humboldtiana. Its relationship to coyote also connects it etymologically with other Spanish words built on coyote, including coyota and coyotear.
Related word forms
How coyotillo is actually used
The term is uncommon outside Mexican Spanish and specialized English writing about Mexican plants, agriculture, or toxicology. In botanical contexts, the scientific name Karwinskia humboldtiana provides the clearest identification.
Easily confused with coyotillo
Coyotillo is the Mexican Spanish name of a thorny shrub or small tree, while coyote normally denotes the wild dog or a related animal.