In a large bowl, mash banana with a fork. Add plant milk and mix until lump free.
Add whole-grain flour and baking powder to banana mixture, and mix with a fork just until dry ingredients are moistened.
Stir in maple syrup and blueberries until incorporated. Heat a medium skillet over medium-high heat until hot. Pour 1/2 cup batter into the skillet.
Reduce heat to medium, and cover. Cook for 2 to 4 minutes or until pancake starts to brown at the edge. Using a spatula, turn pancake and cook other side until light golden brown. Repeat with remaining batter. Drizzle with additional maple syrup if desired to serve.