Linked from
The 14 pages that link to Abscission, each with the reason it gives.
FruitRelated: Abscission often releases mature fruits for dispersal.
Nut (fruit)Related: Mature nuts are often shed after their fruit stalks separate.
SepalRelated: Some sepals detach after flowering through this process.
SpikeletRelated: Specialized separation zones let mature spikelets or their parts detach.
Deciduous plantRelated: An abscission zone forms at the leaf base and releases each leaf.
LarchRelated: Larches form separation zones that release their needles before winter.
DefoliantRelated: Defoliants induce the separation process at the base of leaves.
TumbleweedRelated: A tumbleweed must detach from its roots or stem before wind can move it.