This lady's large hat is curved to the shape of the head with a ribbon and small plant leaves in the…
"A, Shapes of bases of leaves; B, Peltate leaf of Tropaeolum. 1, heart-shaped; 2, arrow-shaped; 3, halberd-shaped."…
"Sessile.--Said of leaves seated on the stem, without footstalks." -Newman, 1850