Carnivorous mustard seeds

[Carol Hanny]

HELP!

A week or so ago, I saw on a show on carnivorous plants on a National 
Geographic Show on PBS.  At the end of the show, they mentioned how 
mustard seeds exude a goo that traps insects.  Does anyone know where I 
can get some more info on this?  Maybe a scientific article?  I have a 
few books on carnivorous plants but no mention of the above.  

You can email me or post here!

Thanks,

Carol A. Hanny
channy at esslink.com