This is a public health warning. While panicking about swine flu, e.coli and so on don't overlook the danger posed by more everyday predators like flowers. Don't be fooled by the pretty colours and nice smells - they are not as harmless as they seem.
"Beware Of The Flowers" - John Otway
"Even Roses Have Thorns" - Jesus Couldn't Drum
As any science expert will tell you, the most dangerous plants of all are the Triffids: