Here are some autumn Gambel Oaks at Picture Canyon.
Here are some leaves from Quaking Aspens here in northern Arizona.
Mustard Whites (or Veined Whites) hindwing veins can range from light to heavy gray/brown scaling. They are found in woodlands and forest edges, in cool, moist places. Their host plants include crucifers which include mustards, cabbages, broccoli, turnips, cresses. This photo is from summer in northern Minnesota.