SafePlants

Bullhorn Wattle (Acacia cornigera)

The Bullhorn Wattle, scientifically known as Acacia cornigera, is a fascinating plant with a rich history and intriguing ecological interactions.

Common Names

• Bullhorn Wattle
• Bull's-horn Acacia
• Bull-horn Thorn
• Oxhorn Acacia
• Cook Acacia
• Cockspur Acacia
• Whitethorn acacia

Taxonomy and Nomenclature

• Scientific Name: Acacia cornigera (L.) Willd.
• Family: Fabaceae
• Synonyms:
  • Acacia sphaerocephala Schlecht. & Cham.
  • Acacia veracruzensis
  • Acacia dolichocephala
  • Acacia campecheana Schenck
  • Acacia cornigera var. americana DC.
  • Acacia cubensis Schenck
  • Acacia furcella Saff.
• Alternative Scientific Name: Vachellia cornigera (L.) Seigler & Ebinger

Distribution and Habitat

The Bullhorn Wattle is native to Central America and South America. It is specifically mentioned as being found in Central America.

Ecological Role

• The Bullhorn Wattle forms a mutualistic relationship with Pseudomyrmex ferruginea ants. The ants live within the plant, obtaining food and shelter, while defending the acacia.

Morphological Characteristics

• The plant is described as a tree or shrub.
• It is known for its spines.
• The flowers are moderately fragrant and yellow, blooming from late winter to mid-spring.
• The leaves are mid-green.

Allergen Potential

• The allergen potential of Acacia cornigera is noted to be high.

Air Quality Improvement

• The air quality improvement potential of Acacia cornigera is rated as medium.

Resources

• USDA, NRCS. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.
• Discover Life: For information about the biology, natural history, ecology, identification, and distribution.