I think Azalea Japonica is just a general name for garden azaleas.
There are some 800 - 1000 rhododendron/azalea species and thousands of varieties. Satsuki alone already many hundreds of different varieties. Of 'Kurume' azalea, there are hundreds too.
I wouldn't know how to see the difference - all I know is that Satsuki and Kurume are suitable because of their leaf size.
More info about species and varieties here:
More about Satsuki and Kurume here:
And then there's also a north-american species suitable for bonsai, more info here:
Last edit: 9 years 5 months ago by Auk.
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