Denver Parks and Rec is urging residents to 'purge the spurge' and aggressively remove the weed known as 'Myrtle Spurge'.

The plant is considered a "noxious weed" that spreads quickly and has been known to choke out plants native to Colorado.

Additionally the plant produces a white milky substance that can cause irritation to the skin.

Saturday May 20, Denver Parks and Rec will exchange your Myrtle Spurge for another free native plant at Harvard Gulch Park from 9 a.m. to 12 p.m.