Well, one more try. Perhaps we could go back to a stylized silhouette of tall grasses (representing native plants) with a wildflower superimposed on it. Simple, easy to size (I would think), includes any place in the world -- or at least doesn't exclude anyone that I know of, not politically incorrect, won't violate copyright laws, simple and easy to understand ... and so forth. I imagine this isn't written in stone and could be changed down the line if someone comes up with something better. At least we'd have a badge ... which we still don't at the moment.
So if that isn't suitable at least for the present time, then someone can make a decision about an alternative and we can move the process forward?