Sunflower direction - Knowledgebase Question

Tampa, Fl
Question by miguelcorona0
September 19, 2009
Why do sunflowers follow the sun direction?

Answer from NGA
September 19, 2009


This phenomenon is known as positive phototropism (photo = light, tropos = turn), and although it is not fully understood yet, is commonly associated with the plant hormone auxin (indoleacetic acid).

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