Salvia lyrata 'Purple Prince'
Lyre-leaved Sage or Lyre leaf Sage or Cancer Weed
Small purple-flowers on tall wispy stems 12 to 24 inches tall, blooming in late spring and early summer with some rebloom later in the year. A perennial that self seeds most often - well sometimes a lot.
Low growing, broad flat leaves are a dark purple color. Loved for its deep burgundy foliage. The color changes in the fall to a reddish hue. Looks well mixed with large rocks, low growing leaves might remind one of an Ajuga.
Salvia lyrata is native to the USA, and is found growing in New Jersey west to Oklahoma south to Texas and Florida.