Why do dead sunflowers all face the same way?

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Offline Ed langston

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Why do dead sunflowers all face the same way?
« 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?

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Offline LeeE

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Why do dead sunflowers all face the same way?
« Reply #1 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
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!

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Offline Bored chemist

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Why do dead sunflowers all face the same way?
« Reply #2 on: 13/09/2009 16:53:21 »
Do the dead ones just get blown round by the prevailing wind?
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