the colours of autumn, part 1

This place is in the mountains of Shimogo-machi of Fukushima Prefecture where is about 100 miles away from my town.
This lake is called Kannon-numa. It is a popular place among photographers in the time of autumnal leaves and fresh green.

the flower which name is unknown

I saw white flowers on a riverbank when I took a stroll.
It was very small flower and those were bloomed in crowded onto a twig as shown in the image above.
Diameter of each flower seemed to be less than 1 inch.
It is supposed to be one of species in Asteraceae family, but I have no confidence that it is.