A Smoke Bush with a difference
Most people are probably very familiar with the purple foliaged forms of Cotinus coggygria such as 'Royal Smoke', and it is a wonderful shrub/small tree for a dry sunny spot. People may not be as aware that there is a chartreuse cultivar of C. coggygria called Golden Spirit that is great for a shaded woodland garden to lighten up a dark spot, and it has great golden fall foliage color. Here's a photo link of one in an Alameda garden underneath the canopy of a Coast Live Oak tree.
Here is a link that might be useful: Golden Spirit Smoke Bush