A pear tree pulled from the World Trade Center rubble after 9/11 is now part of a seedling program launched by the National September Eleventh Memorial and Museum.

Three communities have been selected for the inaugural launch of the survivor tree seedling program.

They are Boston, in honor of the Marathon bombing in April that killed three people and injured more than 260, Prescott, Arizona, for the 19 firefighters who died battling a wildfire in June; and the Far Rockaways in New York City, which were devastated last year by Superstorm Sandy.

Representatives from each community attended a ceremony Wednesday at Citi Field to announce the program.