Clover here in India is a very un-popular kind of plant, I have mostly heared four-leaf clover word in hollywood music. I used to wonder what is it, then google told me its symbol of good luck and I believed maybe that is why it is used in song to refer lover. But now since I know Clover has to be eaten with Caution - I am again relating to Lover use in songs. hahaha I cant stop laughing on my weird thoughts. But thanks for sharing the actual science behind clover.
Congrats on your curie, well deserved. :):)