Acer palmatum 'Garnet'

It's full name is Acer palmatum (palm shaped leaves) dissectum (meaning deeply divided or cut, 'Garnet'
Acer palmatum dissectum 'Garnet'
The last part is a variety or selection of the species.
This plant is almost 20 years old, but slow growing, still only 75cms tall and a spread of 150cms.