| heliotropism | <botany> The phenomenon of turning toward the light, seen in many leaves and flowers. Origin: Helio- + Gr. To turn. Source: Websters Dictionary (01 Mar 1998) |
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| heliotropism |
an orienting response to the sun
Ãâó: wordnet.princeton.edu/perl/webwn
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| heliotropism |
Floral heliotropism is a nastic response to the Sun, often seen in sunflowers and other flowering plant species. Movement is observed during the day, as the flower tracks the course of the Sun across the sky. During the night, the flowers may assume a random orientation, while at dawn they turn again towards the East where the Sun rises. This behavior is exhibited, for example, by the snow buttercup (Ranunculus adoneus), an alpine plant. ...
Ãâó: en.wikipedia.org/wiki/Heliotropism
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| heliotropism |
Sunflowers turn to face the sun throughout the day. (Solar tracking)
Ãâó: blue.utb.edu/biology/Oliva/terms_and_definitions_f...
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| heliotropism | an orienting response to the sun |
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