I found this beautiful plant at a plant sale at the local botanical gardens. One of the cute ladies there stopped me and said, "Are you sure you really want to buy that? It's invasive!"
I looked down at the inncoent little plant. It had one seed leaf and one true leaf and a REALLY cheap price. Then I considered my scale of invasiveness (fucking bamboo at damn near the top, followed up quickly by burmuda grass and orange honeysuckle) versus her scale of invasiveness (who knows) and replied that yes, I was going to buy the edible invasive Mexican plant. I have other wonderful edible plants of Mexican origin, like the Cardinal Sage and the Agave Americana. What could go wrong?
It took Rootbeer plant almost a year to start growing, but at the start of the rainy season it took off. Its still one compact plant, and hasn't sent out any runners that I can find. It has started to form the unusual white growths shown in the picture. I can't wait to see what happens with those.
Culinarily, according to Wikipedia it is most commonly used to wrap food (meat and fish) in prior to steaming much as corn husks and banana leaves are used. It has safrole in it, the main ingredient in sassafrass, which is considered to be a carcinogen. So it appears that eating large amounts of Rootbeer plant is not a good idea, even though it is one of the main ingredients in mole verde and is used to make tea and add flavor to chocolate drinks.
I have found that rootbeer plant does freeze down where it is planted in my front yard, but it came back in the spring. Its still a very compact plant, attractive, and smells fantastic.