The Seven Sisters Oak is the largest certified southern live oak

Southern live oak

Quercus virginiana, also known as the southern live oak, is a normally evergreen oak tree native to the southeastern United States. Though many other species are loosely called live oak, the southern live oak is particularly iconic of the Old South....

 tree. Located in Mandeville, Louisiana

Mandeville, Louisiana

Mandeville is a city in St. Tammany Parish, Louisiana, United States. The population was 12,421 in 2008. Mandeville is located on the North Shore of Lake Pontchartrain, south of Interstate 12. It is across the lake from the city of New Orleans and its southshore suburbs...

, it is estimated to be up to 1,500 years old with a trunk that measures 38 feet (11.6 meters). This oak is also the National Champion on the National Register of Big Trees and the Champion Oak of Louisiana according to the Louisiana Forestry Association. The owner who first named the tree was Carole Hendry Doby, who was one of seven sisters. There are seven sets of branches leading away from the center trunk. The Seven Sisters survived a near direct hit from Hurricane Katrina

Hurricane Katrina

Hurricane Katrina of the 2005 Atlantic hurricane season was a powerful Atlantic hurricane. It is the costliest natural disaster, as well as one of the five deadliest hurricanes, in the history of the United States. Among recorded Atlantic hurricanes, it was the sixth strongest overall...

in August 2005.

The "Seven Sisters Oak", formerly known as "Doby's Seven Sisters" is the current president of the Live Oak Society, a status awarded to it by being the largest live oak registered by the society.