''Vachellia sphaerocephala'', the bull's horn thorn or bee wattle, is a plant species in the family
. 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 ...
.
Encyclopedia of Life
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References
sphaerocephala
{{Mimosoideae-stub