Twin - berry or Partridgeberry is a new one for me. This plant also called the Square vine. It is also known as Mitchella repens. It is a creeping prostrate woody shrub occurring in North America
Mitchella repens is cultivated for its ornamental red berries and shiny, bright green foliage. It is used on many Christmas or Holiday decorations.
Its traditional use is written about for menstrual problems and even facilitating child birth
I have never tasted a Twin Berry or Partridgeberry - It is scarlet , edible but tasteless. It is been written that this plant can be used for insomnia, fluid retention and rheumatism. It is always cited to be used inin last weeks before childbirth. Two teas are consumed for menstrual issues and sleep disorders.