Vachellia Sphaerocephala
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Vachellia Sphaerocephala
''Vachellia sphaerocephala'', the bull's horn thorn or bee wattle, is a plant species in the family Fabaceae. The name comes from the shape of the thorns which do indeed resemble the horns of a bull. The tree has a strong, symbiotic relationship with a species of stinging ant, '' Pseudomyrmex ferruginea''. This tree is endemic to Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema .... References sphaerocephala {{Mimosoideae-stub ...
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Fabaceae
The Fabaceae or Leguminosae,International Code of Nomenclature for algae, fungi, and plants.
Article 18.5 states: "The following names, of long usage, are treated as validly published: ....Leguminosae (nom. alt.: Fabaceae; type: Faba Mill. Vicia L.; ... When the Papilionaceae are regarded as a family distinct from the remainder of the Leguminosae, the name Papilionaceae is conserved against Leguminosae." English pronunciations are as follows: , and .
commonly known as the legume, pea, or bean family, are a large and agriculturally important of

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Pseudomyrmex Ferruginea
The acacia ant (''Pseudomyrmex ferruginea'') is a species of ant of the genus ''Pseudomyrmex''. These arboreal, wasp-like ants have an orange-brown body around 3 mm in length and very large eyes. The acacia ant is best known and named for living in symbiosis with the bullhorn acacia (''Acacia cornigera'') throughout Central America. The ant and the acacia exemplify a coevolution of a mutualistic system, as described by evolutionary ecologist Daniel Janzen. Description ''P. ferruginea'' is an obligate plant ant that occupies at least five species of acacia ('' A. chiapensis'', '' A. collinsii'', '' A. cornigera'', '' A. hindsii'' and '' A. sphaerocephala''). Its life cycle conforms to the claustral pattern of ants in general. Mutualistic symbiosis To repel herbivorous animals, various acacias protect their succulent leaves with one of several methods, including vicious-looking spines, repellent, noxious chemicals, and as in the case of the bull's ...
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Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico
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making it the world's 13th-largest country by are ...
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