Artists inspired by Leaves:
Georgia O’Keeffe painted a series of leaves and many are on display at the Phillips collection
Janet Fish incorporated leaves in her still life paintings
Andy Goldsworthy's Art from leaves
Acrylic Leaf Printing
Leaf Printing in Watercolors
Check out Visual Art Educators on Pinterest that have accumulated a surplus of resources on Creating with Leaves:
T Belt: So many lessons & Ideas!
Anita Russell: Stunning artwork made from leaves and many ideas.
Suzy: Lots of constructive & Elementary ideas.
Kathleen Coleman: Quite an assortment here.