Naked Science Forum

Life Sciences => Plant Sciences, Zoology & Evolution => Topic started by: Ed langston on 10/09/2009 19:30:03

Title: Why do dead sunflowers all face the same way?
Post by: Ed langston on 10/09/2009 19:30:03

Ed langston  asked the Naked Scientists:
   
Hi Naked scientist,
 
When sunflowers die they all face the same way. Why is that?
 
Ed

What do you think?

Title: Why do dead sunflowers all face the same way?
Post by: LeeE on 13/09/2009 11:23:04

According to wikipedia, Sunflowers are only heliotropic during the 'budding' stage, and lose their heliotropism once they bloom.  Have a look at:

http://en.wikipedia.org/wiki/Sun_flower#Heliotropism (http://en.wikipedia.org/wiki/Sun_flower#Heliotropism)

Title: Why do dead sunflowers all face the same way?
Post by: Bored chemist on 13/09/2009 16:53:21

Do the dead ones just get blown round by the prevailing wind?