Perennial with small flowers in dense spikes of red, pink,
white, or lavender. Blooms in early summer. Prefers shade
with plenty of moisture. Species range from 1' to 3' tall.
Thomas
G. Barnes @ USDA-NRCS PLANTS Database / Barnes, T.G. &
S.W. Francis. 2004. Wildflowers and ferns of Kentucky. University
Press of Kentucky.