Ah, the mysterious alien plant featured in the movie "Avatar", how I wanted to add thee to my collection! Normally, I don't go hankering after a particular species or cultivar, but after seeing Tillandsias featured in a major movie, I really wanted to find a T. seleriana. Finally, I found one at this spring's botany festival:
Many Tillies are Ant Plants, including T. butzii, T. caput medusae, T. paucifolia, and T. bulbosa. I'll do a separate post on myrmecophytism once I figure out how to pronounce it. Suffice to say that the plants like the ants because they help to keep them fed and watered, and in return, the Tillie gives the ants a way cool house. T. seleriana generally grows in oak forests or in dry, piney woods. Sometimes it needs a little help getting adequate water and minerals, and so the ants come to the rescue.