UL Scabiosa, commonly known as Pincushion Flower.
LL several bouquets of Shasta Daisies (Leucanthemum × superbum).
UR Indian Paintbrush, specifically the Giant Red Indian Paintbrush
Middle - Maltese Cross (a very unique name I thought)
LR Showy Fleabane, also known as Aspen Fleabane or Oregon Daisy (Erigeron speciosus).