Prostrate Knotweed, Birdgrass, Doorweed, Waygrass

Although I don not know much about this plant I must say that unless or until proper research is done concerning this and many many other...Read More plants worldwide it is better not to comment negatively or positively. This all being in light of the fact that it could well be possible there may be strong medicinal value locked inside what the human race may describe as an "invasive weed". Being and herbalist as was Hippocrates I know very well the healing ability of plants. Think of the thousands of plants that have not been tested for their chemical/medicinal properties. There most likely is a cure for every human malady inside one plant or another. I just found this about knotweed: Herbalism and folklore[edit]

Nicholas Culpeper states that the plant is ruled astrologically by Saturn and Capricorn. He also recommended knotweed to cure the spitting of blood. Modern herbalists use it to treat dysentery, excessive menstrual flow, lung disorders, bronchitis and jaundice, and gall and kidney stones.[citation needed] Not all of these uses are supported by scientific evidence. The plant is an astringent, coagulant, diuretic and expectorant

An invasive little annual weed that tends to like firmly packed soils. It forms dense mats and grows prostrate in walkways and parking lo...Read Morets.

Thought to be Eurasian in origin, it is now widespread across North America. A common pest in gardens and lawns.