HOUSTON — The flower girl at Jessica Zabala's wedding is purple, six-feet-tall, uninvited and smells like dead bodies.

She is Lois, a rare "corpse flower," deemed the world's stinkiest bud.

Lois is unexpectedly blooming in the Houston Museum of Natural Science, in the room right next to where Zabala is marrying Jonathan Smith on Saturday. "I don't need a florist anymore," Zabala laughs. "I've got Lois."

The flower is an Amorphophallus titanum, which has only ever bloomed 29 times in the United States. It's happened twice in Texas, but never before at the museum's Cockrell Butterfly Center, which hosts about 50 weddings a year.

"I did not know that Lois was quietly sprouting in the greenhouse across the street," Zabala said, donning an "I Love Lois" button given to her by the museum. Museum experts initially thought she would bloom two weeks ago and Nancy Greig, center director, was certain the stench would overtake the museum by Thursday.

"But she has not turned on the funk yet," Greig said. So Zabala and Smith remain uncertain. Will their wedding stink?

Lois will decide.