A
mutation that deviate greatly in
appearance or structure from the normal
characteristic of a
plant (stems,
spines,
flowers, etc), frequently referred to an abnormal uncoordinated form
of vegetative growth,
often with random production of differentiated
organs, resulting in loss of normal
growth habit.
For example a plant
with a multitude or condensed
lateral proliferation
or of club-likestem without
leaves or
spines. Such monstrous
form could suddenly appear in every
plant and completely change their form.
