Japanese Barberry, Berberis thunbergii. Invasive plant in Connecticut, many planted as ornamental shrubs in yards and they've spread to the woods. More information here. The foliage turns orange and red in autumn and even in November some still retain their foliage.
Today our family took a nature walk for some fresh air. I had fun also taking photos.
Photo taken 11/15/09 by ChristineMM in Fairfield County, Connecticut.