![](http://www.alamy.com/thumbs/6/EE0D4BB9-E45D-45DD-BB6E-94E9756040E1/C7CFM1.jpg)
Phototropism, phototropic response in a sunflower, Helianthus annuus, seedling
Size: 4372px × 3868px
Photo credit: © Martin Shields / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: auxin, bending, botany, clay, development, heliotropism, hormonal, leaning, photo, phototropic, phototropism, plant, positive, pot, potted, raphanus, response, seedling, sill, stem, tropism, window, windowsill