On Nov 4, 8:34*pm, Michael Bell wrote:
I have found a naturally-occurring dwarf alder. It looks normal in
every way except that it hasn't grown tall, the gap between annual
whorls of branches is much shorter than the normal alders around it.

Is this trait likely to breed true from seed?

I have no particular use in mind, it just struck me as an interesting
variant.

Michael Bell

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Only a percentage of the seed will have the same properties. It has to
be bred back over generations or cuttings taken. That's why you buy
most trees as saplings, they are cuttings and hence "clones" of the
original plant.
It takes years to get them to breed true because trees take so long to
come to maturity and bear seed.