It's been five years since former first lady Lady Bird Johnson died and a tribute to her life is planned this weekend in Texas.
The Lady Bird Johnson Wildflower Center in Austin is opening two small exhibits related to her conservation accomplishments.
One explains the former first lady's environmental impact. The other displays dozens of pens -- borrowed from the LBJ Library and Museum -- and used by President Lyndon B. Johnson to sign conservation legislation.
Admission is free Sunday to Lady Bird Tribute Day, which includes various participatory activities at the Wildflower Center. It's also the centennial of the former first lady's birth.