Japan
Europe, Northern Europe, Western Europe, Asia, Central Asia, Western Asia
Dappled Shade, Hedge, Shady Edge, Woodlands
Clay soil areas, Loamy soils, Sandy areas, sandy seeps, Well Drained
4, 5, 6, 7, 8, 9, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24