Answer: I wonder if it might be the Mexican fire plant, also called painted leaf, fire-on-the-mountain, and annual pointsettia. (The botanical name is Euphorbia heterophylla, or Poinsettia heterophylla.) This plant is native from Illinois to Florida, and has red bracts similar to the common poinsettia, but much less showy.
There's a photo of the plant on this site; you need to scroll down a ways to get to it:
I have had some trouble finding sources. One web site with the plant is located at:
And a reference I consulted suggested Wild Seed Farms as a source; they don't have an online catalog, but here is their web page with contact info:
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