Red Threads Alternanthera (Joseph's Coat)

Alternanthera dentata 'Red Threads' 

Unique, easy-to-grow foliage plant adds distinctive color and texture to sun and shade combos. It has slender-leaves in shades of deep burgundy.  It blooms small, pale flower buttons in the leaf axils that you may never notice. Also know as Joseph's Coat and Upright Calico Plant.