Phytolacca americana- Pokeberry.
Like most other dye plants pokeberry has many other uses.
Pokeberry ink was used to write the Declaration of Independenc.
Native Americans used pokeberry to color cloth and basket-weaving material.
A chemical in pokeberry is being researched for its potential to cure cancer-http://www.cancer.org/treatment/treatmentsandsideeffects/complementaryandalternativemedicine/herbsvitaminsandminerals/pokeweed
Scientists at Wake Forest University have learned that pokeberry dye doubles the efficiency of fibers used in solar cells to absorb energy. http://www.newsobserver.com/2011/12/19/1719502/the-purple-power-of-pokeweed.html
So many of the dye plants we utilize have healing and medicinal properties. Another important consideration when choosing how you want to dye your natural fibers.
Pokeberry makes the most beautiful scarlet/fuchsia colors or if dye pot gets too hot a really interesting taupe/gold color that looks great paired with silver/gray alpaca fiber.