Wildflower Wedding

An old friend from DC recently popped back in my life with some questions about flowers for her upcoming nuptials. She said that she's going for a wildflower look which got me thinking about what that exactly means.

Some key words come to me when thinking about wildflowers: eclectic, natural, rustic, light hearted, etc. But how to translate this feel into flowers?

I did some image hunting and below is a bit of wildflower inspiration. Some trends: clear containers (typically mason jars) free form arrangements, lots of flowing foliage, small delicate arrangements.