A blossom opens up in sunshine but closes in dark skies and rain, why is this not an example of tropism?
A blossom opens up in sunshine but closes in dark skies and rain, why is this not an example of tropism?
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Answer by gardengallivant
This is a form of nastic movement. It is a response to external stimuli (light, temp.) but not directed toward the stimuli. Nastic responses are much faster than tropic usually. Nastic movements like this are reversible and repeatable.
http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0007057.html
blossom
Blossoming pink flowers 3
A blossoming tree outside Wild Iris Coffee House in Prescott, Arizona.
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