What characterizes the colony morphology of Bacillus subtilis?

Bacillus subtilis:

1. Bacillus subtilis is a Gram-positive bacteria and has a rod shape.
2. When grown on common nutrients, it forms a round, milky, rough, yellowish, or translucent colony with jagged edges.
3. The Bacillus subtilis strain showed various colony growth patterns on the agar plate.
4. It seems to propagate without openings, with concentric rings on plates of varying concentrations of agar and nutrients.