Birdwatch Note Rating
2024-08-07 17:43:16 UTC - HELPFUL
Rated by Participant: C2ED7CB20EA2CE791F3FF353441C7D43FE53660B02CE10B2BB059230667109D9
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Original Note:
In bud stage, they are following the sun from east to west during the day due to differential stem growth controlled. However, mature sunflowers stop this movement and face east to attract more pollinators, as east-facing flowers warm up faster in the morning. https://www.scienceabc.com/nature/sunflowers-always-face-follow-sun.html https://news.berkeley.edu/2016/08/04/how-sunflowers-follow-the-sun
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