| Vachellia sphaerocephala | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Clade: | Mimosoid clade |
| Genus: | Vachellia |
| Species: | V. sphaerocephala
|
| Binomial name | |
| Vachellia sphaerocephala (Schltdl. & Cham.) Seigler & Ebinger[1]
| |
| Synonyms | |
| |
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.[2] This tree is endemic to Mexico.[3]