Linked from
The 13 pages that link to Phototropism, each with the reason it gives.
PhotoperiodismCompared with: It concerns growth direction rather than seasonal timing.
AuxinBroader topic: Unequal auxin distribution across a shoot helps produce its curvature.
HedgeRelated: Uneven light can make hedge growth lean or become sparse on one side.
HouseplantRelated: Uneven window light can make stems and leaves grow toward one side.
DieffenbachiaRelated: Indoors, Dieffenbachia stems and leaves can lean toward stronger light.
PlantBroader topic: It directs photosynthetic tissues toward better-lit conditions.