There are many, many willows with wide leaves. I just went out in the yard and took these pics:
Salix cinerarea and S. cinerarea 'Variegata'
Salix gracilistyla 'Melanostachys' and S. schraderiana
Although those (above) are Eurasian willows, there are many American ones with wide leaves, too.
I guess I don't have a pic of Salix repens foliage
Salix repens 'Iona Form'
I've never had any galls on my willows, but they are common in the wild here.