[1] The Bahia, Brazil, Washington navel orange was brought to the United States by the U.S. Department of Agriculture in 1870.

This mutated orange was discovered in a monastery orchard in Brazil in 1820.

The bottom of the orange has a depression which looks like a human belly button.

[4] In April 2018, a white cloth was draped over the tree to prevent it from being infected by citrus greening disease.

The cloth was replaced with a 22' tall x 25' x 25' tent with an insect screen in June 2019.