Try and find an angle to take a photo in your location that gets the most (number and or variety of) plants in one photo. Take several shots by yourself or challenge a friend to take photos at the same location. You could compare photos, enlarging them on a computer, tablet or TV screen to see how many plants you managed to clearly capture in one photo.
You could try using different subjects e.g. birds, bugs, shells, leaves, rocks - the most in total or different varieties in one photo (without moving them yourself) wins.
