Phyllanthus urinaria Chamberbitter aka Gripeweed aka Little Mimosa

At 6′ tall it’s not so little
ChamberBitter

 

The weeds are the plants I have the most difficult time ID’ing. No one puts out books on weeds.

This showed up a few years ago and it’s been impossible to eradicate. On the upside they are tall and pull up easy so it’s not a lot of work to remove them. Best practice is to pull them before they have a chance to reseed. Seeds require light to germinate

Height: up to 2′ (see photo of 6′ plant at top of page)
Annual
Prefers warm, moist, shady soil, but will grow in full sun
Native to Asia

Don’t try this at home:
– plant may have anti-tumor, antiviral properties. This is folklore, I couldn’t find any scientific studies to back this up

Chamberbitter