I photographed this plant at Denali National Park. It is an example of a composite flower that does not have "petals" (ray flowers), just disk flowers.
A moth larva made these squiggly lines on this aspen leaf. The dark spots are "frass," the droppings of the larva. The caterpillars eat the cells on the inside of the leaves. Many leaves of the trees at Denali National Park had been affected by the larvae.
This plant grows on the beaches. I found it on the Kenai Peninsula. Note how the flowers change color as they age.
