Nepenthes rigidifolia is a species of giant pitcher plant that grows in a single, small area of Sumatra, Indonesia. It's so endangered that there are thought to be only two left in the wild!
Twenty-four specimens have been discovered in the past, but habitat destruction has all but wiped them out.
More information here.
Thanks to Simon Eyre for the link.
Photograph by ma_suska, via Wikimedia Commons
