Le Roux notes that the physical similarities between the two trees, Acacia heterophylla from Réunion ... of improbable events and serendipity in shaping which species occur where.

There used to be many more acacia trees. Twenty years ago, the savannah was covered with them. These trees provided food and shelter for native acacia ants and in turn, the ants defended the trees ...

Relationship: In African savannas, ants and acacia trees have formed a mutualistic relationship. The acacia tree provides shelter and food (nectar and specialized nodules) for the ants ...

None of the seven acacia trees in the front yard of Sam Morse’s home in La Feria, Texas, seem different from any of the others—or from their countless cousins that thrive in the Lower Rio ...