Phytoremediation

==This is a Stub==
Please add knowledge and links to resources on using plants to remediate soil contaminated with lead, heavy metals, and other harmful pollutants here.
To get things started, here's a PDF originally from the EPA on how it works.
Ideas for this page: create a phytoremediation category and attach it to entries for plants that are good at cleaning up the soil, so that those plants can be listed through the category. Some seem to be invasive, per what appears on this list - so categorizing those safer for Maryland would be helpful.
Reference to include about a local successful experiment in using ferns to remove arsenic, thanks to Ginger Woolridge: https://www.pnas.org/content/114/29/7475?fbclid=IwAR1E9eYJemxY-wXanhznC_4GrqB3-LBp8GTiMSjq3tSQ3C4pXj8MqvrcB2I