Pictures of the Week: June 10th, 2006 – June 16th, 2006

One-Night Stand
Pat Coleman photographs a night-blooming Cereus, peniocereus greggii, at Tohono Chul Park in Tucson, Arizona on Tuesday. The plant, which looks like a dead bush most of the year, blooms for only one night then closes forever with the first rays of the morning sun.