Its one of the signs of the coming apocalypse!!

Just kidding.

It happens all the time.

Finding out how it happens would be a good subject for an article!

BTW, Helianthus annuus is an annual (by definition) not a tree.

"cristina" wrote in message
...
Have you ever seen a plant with tree cotyledons?

http://www.geocities.com/artyard/piante/trico2.html

it's an heliantus annuus

How can it be?