Disclaimer ..... I don't know what this is and US natives are outside my experience. However, since nobody has come up with anything on this I'll say what it makes me think of. I get a sort of Scrophulariaceae feeling when I look at this. Something like a Mimulus or figwort. The wet site would support this hunch. The coloration may be a defining feature or it may be just a one off aberration in this particular specimen. Maybe someone else can take this idea further.

Flora,

I do believe you found the golden key; It does look like Mimulus guttatus, seep-spring monkey flower. It's a beautfiul native plant here on the west coast found in exactly that habitat.

Here is a link that might be useful: {{gwi:144032}}

Thank you for your insight. There are approximately 100 of these plants growing in the same vicinity and they all have the same bi-color leaves. I think I will have to wait until Spring and see what the flowers look like. Thanks again.