The link should be good for seven days, then you'll need a subscription or pay-per-view. Not always, but usually:
http://www.latimes.com/news/science/la-sci-carni-plants-20100908,0,2083547,full.story
http://www.latimes.com/news/science/la-sci-carni-plants-20100908,0,2083547,full.story