Linked from
The 37 pages that link to Plant hormone, each with the reason it gives.
AuxinNarrower topic: Auxin is one member of this broad signaling class.
MeristemNarrower topic: Hormones such as auxin and cytokinin help pattern meristem activity.
AbscissionNarrower topic: Abscission depends on interactions among several plant hormone signals.
PhototropismNarrower topic: Auxin acts as the hormonal signal underlying much phototropic bending.
Abscisic acidNarrower topic: Abscisic acid is one member of this diverse signaling system.